Academic literature on the topic 'Cronbach alpha reliability coefficient'
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Journal articles on the topic "Cronbach alpha reliability coefficient"
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Kilic, Selim. "Cronbach's alpha reliability coefficient." Journal of Mood Disorders 6, no. 1 (2016): 47. http://dx.doi.org/10.5455/jmood.20160307122823.
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Amirrudin, Muhammad, Khoirunnisa Nasution, and Supahar Supahar. "Effect of Variability on Cronbach Alpha Reliability in Research Practice." Jurnal Matematika, Statistika dan Komputasi 17, no. 2 (December 23, 2020): 223–30. http://dx.doi.org/10.20956/jmsk.v17i2.11655.
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This study aims to describe the effects of variability through data simulation to determine which aspect of variability that maximizes coefficient of Cronbach Alpha reliability. Cronbach Alpha is widely used for estimation of reliability, in recent still. This study served a conceptual and practical simulation for estimating the profound aspect of Cronbach Alpha coefficient relating to the variability of the data. This study carried out with data simulated using the rand between method by Microsoft Excel then simulate different categorical data responses to different range of items by manipulating sample size, range, number of items, variance and standard deviation. The results show that number of variance and standard deviation of data had the most profound aspect of Cronbach Alpha's reliability other than range. The increasing number on some aspect shows that standard deviation and variance has the stability to shows the positive correlation with the coefficient of Cronbach Alpha reliability other than range.
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Sarwiningsih, Rida. "The Comparison Accuracy Estimation of Test Reliability Coefficients for National Chemistry Examination in Jambi Province on Academic Year 2014/2015." JKPK (Jurnal Kimia dan Pendidikan Kimia) 2, no. 1 (May 1, 2017): 34. http://dx.doi.org/10.20961/jkpk.v2i1.8740.
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<p>This research aims to compare the internal consistency of reliability coefficient on classical test theory. Estimation accuracy of internal consistency reliability coefficient used several methods of the coefficient reliability formulation. The methods are Split-Half Method, Cronbach Alpha formula, and Kuder Richardson formula. Determination of the test reliability coefficients used also some formula and then their results were compared with the results of their estimation accuracy. This research is a quantitative descriptive. Data were analyzed based on responses of national chemistry examination in Jambi province on academic year 2014/2015. The data of students answer sheets were taken using proportional stratified random sampling technique. There are 200 students’ responses from 162 schools (132 public schools and 30 private schools) in Jambi province. The form of data were dichotomy data and analyzed using Split-Half Method. Their reliabilities were analyzed using Cronbach Alpha formula and Kuder Richardson formula. Reliability criteria used consist of five conditions, they are 0.5; 0.6; 0.7; 0.8 and 0.9. The results of this research indicated that (a) the coefficient of reliability in classical test theory developed by measurement experts (using Split-Half Method, Cronbach Alpha formula and Kuder Richardson formula) have varying estimates of accuracy; (b) average reliability coefficients have the precision estimation about of 0.78 up to 0.8; (c) the reliability coefficient using Spearman Brown formula was 0.78, with Rulon formula was 0.78, Flanagan formula was 0.77, Cronbach Alpha formula was 0.838, the KR20 formula was 0.838, and KR21 formula was 0.82<em>1.</em></p>
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Béland, Sébastien, and Denis Cousineau. "Adieu coefficient alpha de Cronbach! J’ai trouvé plus fidèle que toi…" Revue de psychoéducation 47, no. 2 (November 27, 2018): 449–60. http://dx.doi.org/10.7202/1054068ar.
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De nombreux chercheurs en psychométrie soutiennent que le coefficient alpha de Cronbach (1951) n’est pas une mesure adéquate de la fidélité (reliability) d’un test. C’est dans l’optique d’améliorer les pratiques d’analyse de données que ce court article va présenter les fondements théoriques de la fidélité, synthétiser les principales limites de l’alpha en plus de présenter de façon concise deux alternatives très prometteuses: le great lower bound et l’omega. Des logiciels gratuits et en téléchargement libre sont mentionnés pour obtenir un estimé de ces coefficients.
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Becker, Gilbert. "Creating Comparability among Reliability Coefficients: The Case of Cronbach Alpha and Cohen Kappa." Psychological Reports 87, no. 3_suppl (December 2000): 1171–82. http://dx.doi.org/10.2466/pr0.2000.87.3f.1171.
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Cronbach alpha and Cohen kappa were compared and found to differ along two major facets. A fourfold classification system based on these facets clarifies the double contrast and produces a common metric allowing direct comparability. A new estimator, coefficient beta, is introduced in the process and is presented as a complement to coefficient alpha in estimating the psychometric properties of test scores and ratings.
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Gordon, Amber S., Ashly C. Westrick, Michael I. Falola, Chevis N. Shannon, Beverly C. Walters, and Winfield S. Fisher. "Reliability of postoperative photographs in assessment of facial nerve function after vestibular schwannoma resection." Journal of Neurosurgery 117, no. 5 (November 2012): 860–63. http://dx.doi.org/10.3171/2012.8.jns12158.
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Object This study was undertaken to assess the reliability of observations of postoperative photographs in assigning House-Brackmann scores as outcome measures for patients following resection of vestibular schwannomas. Methods Forty pictures of differing facial expressions typically elicited from patients for assigning House-Brackmann scores were individually evaluated by neurosurgery residents and faculty members at the University of Alabama at Birmingham; a score was assigned to each picture by the individual raters. The interrater reliability was measured using the Spearman correlation coefficient, Kendall coefficient of concordance, and kappa statistic; internal consistency was calculated using the Cronbach alpha reliability estimate. Results The Spearman correlation coefficients showed strong positive association among raters, with a range of values of 0.66 to 0.90. Internal consistency measured by the Cronbach alpha coefficient was excellent (α = 0.97). The Kendall coefficient of concordance for the ordinal grades suggested a substantial degree of agreement among the raters (w = 0.76, p < 0.001). Conclusions Static postoperative photographs are a reliable outcome measure for determining facial nerve function after vestibular schwannoma resection and may serve as a surrogate for the dynamic patient interview.
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Nicholas, Lionel, Neil Orr, and Priscilla Daniels. "Reliability of a Knowledge of Aids Scale: A Replication." Psychological Reports 79, no. 2 (October 1996): 529–30. http://dx.doi.org/10.2466/pr0.1996.79.2.529.
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Zimet's knowledge of AIDS scale was completed anonymously by 2,209 university students to assess whether a split-half approach in which items in each half were matched for content would provide better estimates of reliability than other methods. Analysis indicated that the odd-even Spearman-Brown split-half reliability coefficient was lower than both the alpha coefficient and the content-based split-half coefficient. The Cronbach alpha was similar to the content-based Spearman-Brown reliability coefficient.
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Karakaya, Sevinc, and Zeliha Alparslan. "Sample Size in Reliability Studies: A Practical Guide Based on Cronbach's Alpha." Psychiatry and Behavioral Sciences 12, no. 3 (2022): 150. http://dx.doi.org/10.5455/pbs.20220127074618.
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Objective: Internal consistency of scales is crucial for the quality of clinical practices, and scales that measure various aspects of clinical disorders must possess acceptable internal consistency. In the assessment of the internal consistency of the scales, the present study considered the Cronbachs alphas coefficient. This study aims (1) to provide a practical sample size guide based on Cronbachs alpha for medical researchers; (2) to investigate the factors related to the determination of the sample size needed for a correct estimation of Cronbachs alpha. Method: The calculation steps of the two sample size approaches (desired precision and desired power) proposed by Bonett are detailed and the sample size tables of these approaches are tabulated. Results: Findings indicate that as the number of items in the scale increases, the sample size decreases to a certain level but reaches a plateau when the number of items is about 30. Furthermore, it is claimed that the sample size should be at least 45 (and more) in order to calculate a meaningful internal consistency coefficient. Conclusions: In the present study, we extracted detailed information about the key components of sample size calculation for Cronbachs alpha and provided an easy and practical tables, which will enable clinicians to determine the appropriate sample size for their internal consistency studies.
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Kent Kükürtcü, Sevi, Nefise Semra Erkan, and Yasemin Seyfeli. "The Development of the Democratic Behavior Scale: A Validity and Reliability Study." Theory and Practice in Child Development 1, no. 1 (December 15, 2021): 56–70. http://dx.doi.org/10.46303/tpicd.2021.5.
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This study aimed to develop a scale to determine the democratic behavior levels of children in early childhood. The study group included a total of 486 children attending kindergartens and primary school nursery classes in Melikgazi, Kayseri. Scale reliability was tested by using intra-group correlation values, item analysis coefficients, Cronbach’s Alpha reliability coefficient (0,98), and the Hotelling T2 test result [ 830,12 and (p<0.001)]. For validity testing purposes, the Cronbach Alpha coefficient, KMO test result (0,97), the Bartlett test and item analysis (p<0.001) were calculated. It was consequently decided that the scale was suitable for factoring, and AFA was used in principal component analyses. Following this, the structural equation model of DFA was performed, which confirmed that the model suited the data and that the 3-factor structure of the scale was valid. Confirmed as valid and reliable, the scale consisted of a total of 38 items in the sub-dimensions of "Knowing Your Rights", "Autonomous Behaviors" and "Democratic Behaviors". The highest score possible from the scale is 190, while the lowest possible score is 38.
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Parthiban, S., and Paul Rodrigues. "Cronbach alpha reliability coefficient-based reputation mechanism for mitigating root node attack in MANETs." International Journal of Information and Communication Technology 11, no. 2 (2017): 286. http://dx.doi.org/10.1504/ijict.2017.086254.
Full textDissertations / Theses on the topic "Cronbach alpha reliability coefficient"
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Landon, Kathleen Lois. "Evaluation of success lab in terms of learning environment, attitudes toward mathematics and academic efficacy among high school algebra students." Thesis, Curtin University, 2011. http://hdl.handle.net/20.500.11937/1211.
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I investigated the effectiveness of an Algebra 1 intervention program, Success Lab, in terms of learning environment and students’ attitudes toward mathematics and academic efficacy with 20 ninth grade classes (N = 313) in three central California high schools. A group of 56 students concurrently enrolled in Algebra 1 and Success Lab were matched and compared with 56 non-intervention students. Criteria of effectiveness consisted of learning environment scales from the What Is Happening In this Class? (WIHIC), attitude scales from the Attitudes Toward Mathematics Inventory (ATMI), and an academic-efficacy scale based on the Patterns of Adaptive Learning Scales (PALS).Factor analysis (principal axis factoring with varimax rotation and Kaiser normalization) showed that the three learning environment scales accounted for 57.61% of the total variation for the pretest data and 63.17% of the total variation for the posttest data. The Cronbach alpha reliability coefficient exceeded 0.80 for every learning environment scale for both the pretest and posttest. Factor analysis of data for the attitude and efficacy scales of the ATMI/PALS revealed that the Value scale accounted for 47.99% of the total variation for pretest data and 52.49% of the total variation for posttest data. Cronbach alpha reliability coefficients all exceeded 0.85 for the attitude and efficacy scales for both pretest and posttest data.A paired-samples t-test was used with each learning environment and attitude and efficacy scale to determine the statistical significance of differences between the intervention group and the non-intervention group. Posttest differences between the intervention group and the non-intervention group for the three learning environment scales were statistically significant even after a modified Bonferroni correction was applied. Also the between-group differences were sizeable in magnitude for all three learning environment scales (with effect sizes of over half a standard deviation indicating a medium effect).However, posttest differences between the intervention group and the nonintervention group were statistically nonsignificant for the three attitude and efficacy scales (after application of a Bonferonni correction) and were associated with relatively small effect sizes ranging from 0.18 to 0.34 standard deviations. Nevertheless, students participating in the intervention class, Success Lab, had somewhat more positive attitudes towards mathematics and academic efficacy than the non-intervention group.For both pretest and posttest data, simple correlation analysis revealed positive and statistically significant correlations between each student attitude and efficacy scale and each of the three learning environment scales. Multiple regression analysis showed that the multiple correlation between the set of three learning environment scales and each attitude and efficacy scale separately was statistically significant for both the pretest and posttest data. Standardized regression coefficients revealed that Teacher Support and Task Orientation were significant independent predictors of Value for the pretest data and Involvement and Task Orientation were significant independent predictors of Value for the posttest data. All three learning environment scales were significant independent predictors of Enjoyment for both the pretest and posttest data, but only for pretest data for Academic Efficacy. Posttest analysis showed that Involvement and Task Orientation were significant independent predictors of Academic Efficacy.
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Winkelspecht, Christopher S. Thomas Adrian L. "Transient error and coefficient alpha a call for cautious practice when applying and interpreting alpha in personnel selection settings /." Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Fall/Dissertations/WINKELSPECHT_CHRISTOPHER_53.pdf.
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Levey, Elizabeth J., Marta B. Rondon, Sixto Sanchez, Michelle A. Williams, and Bizu Gelaye. "Psychometric properties of the Spanish version of the 10-item Connor Davidson Resilience Scale (CD-RISC) among adolescent mothers in Peru." Springer Science and Business Media Deutschland GmbH, 2021. http://hdl.handle.net/10757/655710.
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El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado.The objective of this research is to assess the psychometric properties of the Connor-Davidson Resilience Scale (CD-RISC) in order to contribute to the literature identifying validated resilience measures in low-resource settings where individuals face significant adversity. This cross-sectional study included 789 adolescent mothers who delivered at a maternity hospital in Lima, Peru. The Spanish version of the 10-item CD-RISC was used to measure resilience. Internal consistency and construct validity were assessed by evaluating individual item characteristics as well as the association of CD-RISC score with symptoms of depression, anxiety and sleep disturbance. Exploratory factor analysis (EFA) was performed to test the factorial structure of the CD-RISC. The CD-RISC was found to have good internal consistency (Cronbach’s alpha = 0.85). CD-RISC scores were positively associated with school attendance, financial hardship, and history of childhood abuse; scores were negatively associated with household dysfunction, depression, anxiety and poor sleep quality. The results of the EFA showed that the CD-RISC contained a two-factor solution, which accounted for 46% of the variance. Overall, these findings suggest that the Spanish-language version of the CD-RISC-10 is an adequate measure of resilience in this population. Further research is needed to incorporate culturally-specific constructs into resilience measures.
National Institutes of Health
Revisión por pares
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Liu, Yan. "Documenting the impact of outliers on Cronbach’s coefficient alpha estimate of reliability : informing how one should interpret the extant literature and/or one’s own research findings." Thesis, 2006. http://hdl.handle.net/2429/17563.
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The study of outliers and their impact on statistical results is important because outliers
are prevalent in real data. Previous research has focused on outlier identification and treatment
with no studies having investigated whether outliers have impact on the estimated Cronbach's
coefficient alpha. This is an important gap in the research literature because coefficient alpha is
the most widely used measurement statistic in all of the social sciences. The purpose of this
study is to investigate whether outliers impact the value of coefficient alpha at different amounts
of outlier contamination, the distance of the center of the contamination population distribution
from the uncontaminated parent population, and standard deviation of the contamination
population for varying values of population reliability and sample sizes. The overall results
indicate that the estimates of coefficient alpha are not affected by symmetric outlier
contamination (i.e., when the means of the contamination and parent distributions are equal),
whereas asymmetric outlier contamination artificially inflates the estimates of coefficient alpha.
In particular, this upward bias of coefficient alpha estimates and inflation in statistical efficiency
(i.e., stability) are greater with increasing asymmetry and proportion of outlier contamination.
These effects of outliers on the bias and efficiency of coefficient alpha estimates are reduced for
increasing population reliability.Education, Faculty of
Educational and Counselling Psychology, and Special Education (ECPS), Department of
Graduate
Books on the topic "Cronbach alpha reliability coefficient"
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Hempel, Susanne. Reliability. Oxford University Press, 2015. http://dx.doi.org/10.1093/med:psych/9780198527565.003.0015.
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This chapter discusses reliability. It outlines the nature and purpose of reliability, classical test theory, measures of reliability (measure orientated reliability, parallel test, and test-retest) as well as internal consistency, inter-item correlation, coefficient alpha, and categorical judgements.
Book chapters on the topic "Cronbach alpha reliability coefficient"
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Hair, Joseph F., G. Tomas M. Hult, Christian M. Ringle, Marko Sarstedt, Nicholas P. Danks, and Soumya Ray. "Evaluation of Reflective Measurement Models." In Classroom Companion: Business, 75–90. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-80519-7_4.
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AbstractThe goal of reflective measurement model assessment is to ensure the reliability and validity of the construct measures and therefore provides support for the suitability of their inclusion in the path model. This chapter introduces the key criteria that are relevant in reflective measurement model assessment: indicator reliability, internal consistency reliability (Cronbach’s alpha, reliability coefficient rhoA, and composite reliability rhoC), convergent validity, and discriminant validity. We illustrate their use by means of the SEMinR package and a well-known model on corporate reputation.
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Yockey, Ronald D. "Reliability (as Measured by Coefficient Alpha)." In SPSS® Demystified, 47–56. Third edition. | New York, NY : Routledge, 2017.: Routledge, 2018. http://dx.doi.org/10.4324/9781315268545-5.
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Romero López, Roberto, Javier Molina Salazar, Alivid Coromoto Matheus Marin, and Luis Asunción Pérez Domínguez. "Model of Skills and Capabilities of the Logistics Administrator." In Handbook of Research on Industrial Applications for Improved Supply Chain Performance, 149–74. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-0202-0.ch007.
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This chapter designs a model of the skills and capabilities required of a logistics administrator. The design of the theoretical model of these skills was carried out based on six skills: management in the supply chain, information technologies, quantitative methods, finance, legislation, and soft skills. Its validation was made through the judgment of experts in the area of the supply and logistics chain. The result obtained was a Kappa value of 0.715, a good value. To validate the reliability of the measurement instrument, it was applied to 20 people working in the logistics area. The Cronbach alpha coefficient was used, obtaining a value of 0.928, which allows the reliability of the instrument to be considered excellent.
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Dennis, R., and M. Bocarnea. "Servant Leadership Assessment Instrument." In Handbook of Research on Electronic Surveys and Measurements, 339–42. IGI Global, 2007. http://dx.doi.org/10.4018/978-1-59140-792-8.ch046.
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The SLAI measures the seven concepts found in Patterson’s (2003) theory of servant leadership. According to Patterson, the servant leader (a) leads and serves with love (Winston, 2002), (b) acts with humility (Sandage & Wiens, 2001), (c) is altruistic (Kaplan, 2000), (d) is visionary for the followers (Tangney, 2000), (e) is trusting (Hauser and House, 2000), (f) is serving (Wis, 2002), and (g) empowers followers (Covey, 2002). These are the seven constructs that comprise the servant leadership in Patterson’s model. Servant leadership as a theory emerged from Robert Greenleaf’s (1977) work. Recent investigations have expanded servant leadership to include identification and assessment servant leadership factors (Dennis & Bocarnea,2005; Dennis & Winston, 2003; Laub, 1999; Page & Wong, 2000; Patterson, 2003; Russell, 2000; Russell & Stone, 2002). The 42 items of the Servant Leadership Assessment Instrument (SLAI) cover a variety of attitudes and behaviors reflective of the aforementioned research. Reliability Research has indicated that the SLAI is internally consistent and reliable. Alpha reliability coefficients ranging from .89 to .92 have been reported (Dennis, 2004) for factors of love, empowerment, vision, and humility. Trust factor, however, has loaded with two items on two second data collections (Dennis, 2004) and one sample (Irving, 2005). The following alpha coefficients were found, measuring servant leadership at the individual leader level: (a) .92 for the SLAI love scale; (b) .92 for the SLAI empowerment scale; (c) .8637 for the SLAI vision scale; and (d) .92 for the SLAI humility scale. A Cronbach alpha coefficient could not be calculated for the SLAI trust scale because it only has two items in the scale (Irving, 2005).
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Zuofa, Comfort Chiegenashi, and Christian Olori. "A Survey of Learning Needs of Street Vendors in Nigeria." In Advances in Electronic Government, Digital Divide, and Regional Development, 150–66. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-8134-5.ch009.
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This chapter investigated the learning needs and learning opportunities of street vendors for sustainable livelihood in Nigeria. Two research questions and one null hypothesis were developed to guide the study. The study adopted a correlational survey research design. The population for the study was 6,401 street vendors. The sample size was 335. Instrument for data collection was a questionnaire titled “Learning Needs and Opportunities for Sustainable Livelihood of Street Vendors” (LNOSLSV). It was face validated by three validates. An overall reliability coefficient value of .85 was obtained using Cronbach Alpha Statistical Tool. Data collected were analyzed using the mean to answer the research questions, while the multiple regression was used to test the null hypothesis at .05 level of significance. Findings among others revealed a variety of learning needs. It was recommended that ICT facilities be strategically positioned to display the procedures for the acquisition of various skills by street vendors.
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Hamutoğlu, Nazire Burçin, Murat Topal, Yavuz Samur, Deniz Mertkan Gezgin, and Mark D. Griffiths. "The Development of the Online Player Type Scale." In Research Anthology on Game Design, Development, Usage, and Social Impact, 662–79. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-6684-7589-8.ch033.
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The present study outlines the development of the Online Player Type Scale (OPTS) utilizing a motivational taxonomy developed. This taxonomy was comprehensively reviewed to create scale items, and the conceptual framework of the scale was defined. The study group was comprised of 1,479 students attending grades 5 to 8 of a private school. A purposive sampling method was used to recruit the study group, and playing any videogame frequently was the criterion to be included in the sample. The construct validity and reliability testing showed the OPTS comprised four factors: achievement-oriented (ACH), socialization-oriented (SOC), exploration-oriented (EXP), and competition-oriented (COMP). The Cronbach alpha internal consistency coefficients and composite reliability coefficients were 0.89 and 0.99 for KIL, 0.83 and 0.98 for EXP, 0.83 and 0.98 for SOC, and 0.94 and 0.99 for ACH. It is concluded that the Online Player Type Scale is a valid and reliable instrument for assessing gaming motivation.
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Arellano Ulloa, Luis Hernán, Gerónimo Mendoza Meraz, and Ana Cecilia Villarreal Ballesteros. "Test Design to Assess the Qualities of Science Students' Prior Knowledge." In Advances in Educational Technologies and Instructional Design, 278–96. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-2026-9.ch014.
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Prior knowledge is a complex variable that greatly determines the outcome of learning of science students. Prior knowledge inherent qualities facilitate or interfere in the process of learning; however it hasn´t always been possible to determine the extent and explicitness of these effects on learning. A test to measure these effects was developed with the intention to discern the specific influence of the inherent qualities of prior knowledge of incompleteness, correctness, misconceptions and the absence of declarative knowledge. This multiple choice test includes topics such as vectors, trigonometry, unit systems and prefix definitions, contents considered to be essential to learn Coulomb´s law for electricity and magnetism course in engineering major. The ultimate goal of this project was to design a test with content validity and determine the reliability of this test using Cronbach´s alpha coefficient with a minimum value of 0.7. Finally we present suggestions that can guide future research and the applicability of this test.
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Günaydin, Reyhan, and Emel Yıldız. "Determining the Motives and Behaviors of Brand Hate." In Advances in Marketing, Customer Relationship Management, and E-Services, 474–98. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-5077-9.ch023.
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The aim of this study is to determine the effects of experiential avoidance, moral avoidance, and identity avoidance on brand hate. In addition, this study of brand hate, brand revenge, brand switching intention, electronic negative word of mouth marketing and its effects on brand equity have been tested. The data in this study were obtained from a face-to-face survey with 394 consumers. Cronbach alpha coefficient analysis was used for the reliability of the scales. Factor analysis was used for the validity of the scales. The hypotheses in the study were tested by structural equation analysis. According to the results of the study; ıt was concluded that there is a positive effect of experiential avoidance, identity avoidance, and moral avoidance on brand hate. Also, brand hate has a positive effect on revenge, electronic negative word of mouth marketing, brand switching intention. In addition, brand hate has been found to have a negative impact on the overall brand equity.
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Glaveli, Νiki. "“My Regular Pharmacy”." In Interdisciplinary Perspectives on Operations Management and Service Evaluation, 177–91. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-5442-5.ch009.
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The objectives of this chapter are (1) to develop an instrument that incorporates the core attributes of evaluative criteria that are used by patients/customers in selecting and repeatedly visiting a community pharmacy, (2) to analyze the proposed attributes in order to put forward valid dimensions of evaluative criteria, and (3) to assess the reliability of this instrument. The selection criteria incorporated in the final list were selected based on an extensive literature review and on experts' and customers' opinions. To collect the data, a survey was conducted in the area of Macedonia, Greece. In total, 223 questionnaires were collected. Confirmatory factor analyses revealed a four-factor structure of the proposed instrument namely: price, availability of products, staff competence, and pharmaceutical care services. Moreover, reliability was assessed through Cronbach's alpha coefficient and average variance extracted. The current study outcomes can guide pharmacists' strategic actions in boosting customer patronage behavior in the highly competitive pharmaceutical sector.
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Gokhale, Anu A., and Kenton F. Machina. "Development of a Scale to Measure Attitudes toward Information Technology." In Exploring the New Era of Technology-Infused Education, 49–64. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-1709-2.ch004.
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Educators, and business, and political leaders are increasingly recognizing that computing is a new basic skill necessary for economic opportunity and social mobility U.S. President Obama has announced a new initiative, “Computer Science For All” to empower a generation of American students with the computer science skills they need to thrive in a digital economy (2016). Employers seek technical computer specialists who can write software and invent new applications, but American universities are only training enough students to fill about 40% of the projected 1.1 million technology and computing jobs expected by 2024 (National Center for Women and Information Technology, 2016). Moreover, a lack of gender parity within the U.S. technology industry has long been viewed as a critical problem, detracting from innovation and prosperity. Pursuit of information technology (IT) majors depends, to a great extent, on students' attitudes toward IT. This study developed an Attitude toward IT Scale with a gender subtext to measure certain attitudes toward IT, held by college students. The norm group consisted of mostly freshmen enrolled in 2011 (N = 373), at a large four-year public university in Illinois. Reliability and validity of the 30-item Scale were examined by using Cronbach's alpha and a principal components factor analysis with orthogonal rotation using varimax with Kaiser normalization; the rotation converged in seven iterations. Results of data analyses showed that overall reliability is high (0.85), and factor analyses revealed five orthogonal factors with high coefficient alphas—factors that represented relevant attitude constructs. This Scale may be used by educators at the senior high school and college levels to evaluate the effectiveness of different teaching/learning strategies in promoting positive student attitudes toward IT, and in improving learning among students. The Scale is unique in that it includes attitudes toward gender equality of opportunity in IT.
Conference papers on the topic "Cronbach alpha reliability coefficient"
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Owolabi, Josiah, and Fidelis Adeyinka Adeyemi. "An Assessment of Online Facilitation Processes in the National Open University of Nigeria (NOUN)." In Tenth Pan-Commonwealth Forum on Open Learning. Commonwealth of Learning, 2022. http://dx.doi.org/10.56059/pcf10.349.
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For efficient and effective management of educational delivery, innovations are required. One of such innovations is the online facilitation, which was on a lower scale at the National Open University of Nigeria (NOUN) before the COVID-19 lockdown and now is being improved on. The purpose of this study therefore, is to Assess the online facilitation processes at the National Open University of Nigeria (NOUN). A survey design was used. Three research questions were answered and one hypothesis was tested at 0.05 level of significance. 44 facilitators and 161 learners participated in the study, after face validation and reliabilities of the instruments were ascertained. Cronbach Alpha reliability test was used to determine the internal consistency of the instruments which yielded a reliability coefficient of 0.929 and 0.846 for facilitators’ and learners’ instruments respectively. Data were analysed using frequencies, percentages, mean and standard deviation statistics for the research questions and t-test for hypothesis. Findings from the study showed that every facilitator should possess certain competencies needed to improve on their online facilitation skills and other institutions in Nigeria should use NOUN as a model for their online facilitation processes.
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Singh, Perminderjit, and K. S. Sangwan. "Product and Process Characteristics for Green Manufacturing: Evidence From Indian SMEs." In ASME 2010 International Manufacturing Science and Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/msec2010-34077.
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With growing awareness of environmental issues — from global warming to local waste disposal — business and government have come under increasing pressure to reduce the environmental impacts involved in the production and consumption of goods and services. However, organizations consider environmental assessment fairly late in the product development process, which generates additional design constraints and increases the development costs. The integration of environmental requirements through life-cycle stages of a product is a likely approach, leading to a new paradigm of green manufacturing. Empirical studies by various authors have indicated that Small and Medium Enterprises (SMEs) find it difficult to implement environmental issues in product and process design because of lack of time, resources, expertise and/or framework in comparison to large enterprises. This paper presents the results of an empirical study carried out on Indian SMEs to develop product and process characteristics of green manufacturing. Fifteen product and four process characteristics have been developed to be considered during the product and process design to address the environmental issues for the life cycle of the product. These characteristics provide an easy to use self assessment framework to the SMEs to address the various environmental issues during the product and process design. The characteristics identified from the literature have been validated by using SPSS for Windows statistical tool. The reliability and validity of the data has been assessed by the Cronbach alpha and factor analysis respectively. The results provide sure evidence that the developed characteristics are highly reliable having Cronbach alpha values more than 0.9. Factor loading values for all characteristics are above 0.6, which shows the high validity of the data. A high value of Pearson correlation coefficients also reflects the high correlation among the developed characteristics. The study highlights the various environmental issues to be considered by the SMEs during the product design and development phase.
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Kirkwood, Renata Noce, Natália Cristina Lisboa Batista, Larissa Bragança Falcão Marques, Juliana de Melo Ocarino, Lucas Lobo Alcântara Neves, and Bruno de Souza Moreira. "CROSS-CULTURAL ADAPTATION AND RELIABILITY OF THE FUNCTIONAL GAIT ASSESSMENT FOR OLDER BRAZILIANS." In XXII Congresso Brasileiro de Geriatria e Gerontologia. Zeppelini Publishers, 2021. http://dx.doi.org/10.5327/z2447-21232021res07.
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INTRODUCTION: Many instruments have been used to identify older adults at risk of falling, including performance-oriented mobility assessment, timed up and go test, Berg balance scale, and dynamic gait index. However, there have been reports of these clinical tests having a ceiling effect on community-dwelling older adults. To address this issue, the functional gait assessment was developed based on the dynamic gait index. Therefore, the functional gait assessment is an instrument that assesses postural stability during tasks that cause changes in gait patterns. OBJECTIVES: To translate and cross-culturally adapt the functional gait assessment to the Brazilian Portuguese language and to assess its psychometric properties in older Brazilians living in the community. METHODS: The process of translation and cross-cultural adaptation followed the recommendations of international guidelines. The pre-final version was administered to a sample of 30 older adults, both male and female, living independently in the community. To examine the psychometric properties (reliability, standard error of measurement, and internal consistency), 70 older adults aged 60 to 87 years were evaluated. RESULTS: The original and the translated versions were considered conceptually equivalent. All functional gait assessment items whose numbers were measured in inches and feet were converted to centimeters and rounded off to comply with the unit of measurement used in Brazil. The functional gait assessment-Brazil showed excellent inter- and intraexaminer reliability (intraclass correlation coefficient > 0.90), low standard error of measurement (range = 1.03 to 1.52), and good internal consistency (Cronbach alpha = 0.858). CONCLUSIONS: The functional gait assessment-Brazil is a semantically, linguistically, and psychometrically appropriate instrument for assessing balance during walking in community-dwelling older adults.
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Fah, Lay Yoon, Ng Khar Thoe, Khoo Chwee Hoon, and Chan Sane Hwui. "EXAMINING THE PSYCHOMETRIC PROPERTIES OF A MALAYSIAN RELEVANCE OF SCIENCE EDUCATION (MROSE) QUESTIONNAIRE USING PARTIAL LEAST SQUARES STRUCTURAL EQUATION MODELING (PLS-SEM)." In 3rd International Baltic Symposium on Science and Technology Education (BalticSTE2019). Scientia Socialis Ltd., 2019. http://dx.doi.org/10.33225/balticste/2019.56.
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This research is aimed to validate an instrument, the Malaysian version of ROSE or MROSE to gauge Malaysian secondary students’ interests, attitudes, values, and priorities in S&T-related issues. Partial Least Squares-Structural Equation Modeling approach was used to evaluate the validity and reliability of the instrument. The internal consistency reliability (composite reliability and Cronbach’s Alpha coefficient), convergent validity (Average Variance Extracted), and discriminant validity (cross loadings, Fornell-Larcker criterion, and Heterotrait-Monotrait ratio) for each individual item of the instrument were being assessed. Keywords: affective factor, PLS-SEM, science and technology, relevance of science education (ROSE).
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Beltran-Sanchez, JA, and A. Dominguez. "SCALE TO MEASURE STRESSFUL CHARACTERISTICS IN EDUCATIONAL ENVIRONMENTS: A CASE OF A MEXICAN UNIVERSITY." In The 7th International Conference on Education 2021. The International Institute of Knowledge Management, 2021. http://dx.doi.org/10.17501/24246700.2021.7159.
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When students enter the university, they undertake a series of activities that can potentially stress them and cause their training experience to be not ideal for their learning. It is the responsibility of higher education institutions to provide an optimal environment to acquire knowledge and skills; therefore, they must have instruments that measure the degrees of stress generated. This study's objective was to determine a scale's psychometric properties that measure stressful characteristics in educational environments, namely Semestre i. A cross-sectional study with a survey design was carried out. Two hundred sixty-two university students participated, 122 of whom were men with a mean age of 22.6 (SD = 1.4), and 140 were women with a mean age of 22.1 (SD = 1.2). A scale comprised of saturation dimensions (11 items) and unpredictability dimensions (7 items) was obtained. An Exploratory Factor Analysis was performed with the Maximum Likelihood extraction method and oblimin rotation to determine the construct validity. It was possible to explain 52.3% of the variance (X 2 = 2566.64, df = 153, p = .001; KMO = .92) in two dimensions, namely, high demand environment and unpredictable environment. Reliability was calculated through internal consistency using the Cronbach coefficient, obtaining an alpha value of .92. A parsimonious scale was obtained with the necessary evidence to conclude that valid and reliable data can be obtained, allowing the students' stressful educational contexts to be identified and modified or intervened to generate a healthy learning environment. Keywords: Stress, Student, Scale, Semestre i, Educational Innovation, Higher Education
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Özdemir, Lutfiye, Uyum Elitok, and Yavuz Elitok. "Investigation of the Validity and Reliability of Reputation Quotient Scale in the Banking Sector." In International Conference on Eurasian Economies. Eurasian Economists Association, 2019. http://dx.doi.org/10.36880/c11.02337.
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According to data of The Banks Association of Turkey 2017; In Turkey, the banking sector occupies an important place in the country's economy due to the fact that banks employ approximately 200,000 people and foreign capital and partnerships are increasing in this sector. However, there is an intense competition environment in which all instruments in this sector are used. It is necessary to differentiate to achieve a competitive advantage and to achieve sustainable growth. Differentiation can be realized with abstract values rather than tangible values, which are generally not shown in the balance sheet. Corporate reputation holds a strategic place in relations with stakeholders and is placed in an important position in the eyes of stakeholders. In the study, it is aimed to make a structure analysis of the Reputation Coefficient Scale analysis which can be used to measure the corporate reputation. The data obtained from 185 people working in the banking sector in Batman province and analyzed with SPSS 23.00 and AMOS 24.00 programs. As a result of the analysis, Cronbach's alpha value was 0.924 and it was found to be highly reliable. According to the confirmatory factor analysis performed with the Maximum Likehood method, the results of the fit indexes of the model were well and found as X2/df=1,788, RMSEA = 0,065, GFI = 0,903, CFI = 0,945, TLI = 0,926 and IFI = 0,946. ’Reputation Coefficient Scale’ used in the banking sector in Batman province has been determined as reliable and valid in terms of structure.
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Opateye, Johnson. "Using Proctoring Online Examination System for Building Resilient Assessment Administration: The National Open University of Nigeria Students’ Readiness." In Tenth Pan-Commonwealth Forum on Open Learning. Commonwealth of Learning, 2022. http://dx.doi.org/10.56059/pcf10.9382.
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The mode of assessment administration is fast changing for students of higher institutions all over the world. The current occurrences of COVID-19 pandemic which forbids clustering of people in one place and also observing the protocol of social distancing negates the traditional administration of examination where all students are seated to in the examination . There is therefore the need to build a formidable strategies through which assessment are conducted to students in technology-driven era using online proctoring system. Learners need to be ready to take the advantage of proctoring systems to maximize the flexibilities it affords to build resilient assessment administration. A cross-sectional survey was carried out on five hundred and twenty six (526) National Open University of Nigeria (NOUN) students from six geopolitical zones in Nigeria and across four faculties and one academic Centre of Excellence. Five research questions were answered. An online survey questionnaire which was validated by experts and with a reliability coefficient of 0.86 using Cronbach Alpha was used to collect data for the study. Descriptive, t-test and analysis of variance. Scheffe post hoc was used to ascertain the direction of significance between paired variable categories. It was discovered that NOUN students agreed that proctoring examination system was a means of building resilient assessment administration in institutions of higher learning. Male NOUN students considered using proctoring online examination system as a means of building resilient assessment administration better than the female students. Also, students that are highly ready for proctoring online examination system had the highest opinion that the system could help to build resilience in assessment administration. Relevant recommendations were made for using proctoring examination system to build resilience.
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Babatunde, E. O. "Assessment of Adult Awareness and Perception of Covid-19 Vaccines on Health Status of Urban Dwellers in Nigeria." In 28th iSTEAMS Multidisciplinary Research Conference AIUWA The Gambia. Society for Multidisciplinary and Advanced Research Techniques - Creative Research Publishers, 2021. http://dx.doi.org/10.22624/aims/isteams-2021/v28n2p1.
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The outbreak of coronavirus 2019 (COVID-19) pandemic has significantly inflicted a danger on health, economy and social relations globally covering the six continents and around 2.7 million people had died after contracting the respiratory virus. The global pandemic has necessitated some drastic measures to curb its spread. It is uncertain whether these measures are known and their perception about the measures cannot be ascertained. This study assessed the awareness and perception of COVID-19 vaccine on the health status of urban adult dwellers in Nigeria. The four research questions that guided the study. The study employed correlational research type of non-experimental design. Purposive sampling technique was used to sample 300 participants that took part in the study. Only participants that had taken the COVID-19 vaccine were included in the study. One instrument, Adult Awareness and Perception of Covid-19 Vaccines on Health Status Questionnaire (APCVHSQ) with Cronbach Alpha reliability coefficient 0.85 was used for data collection. Data collected was analysed using descriptive statistic of frequency, percentages and mean as well as thematic analysis. The result revealed that majority of the adult population are aware of the various measures embarked upon to curb the spread of the virus (2.50<3.07). Moreover, adult population in Nigeria perception of covid-19 vaccine prevalence was relatively negative (2.50<2.60). In addition, majority 249 (81.6%) of the adult population believed that their health conditions were not worsened after taken Covid-19 vaccine while 261 (84.2%) of the adult population in Nigeria did not find it difficult to cope with their daily activities after the vaccination. 48.4% had the higher cases of malaria associated with Covid-19 vaccination. It is suggested that more awareness campaign should be embarked upon by the agency responsible for mobilization to reduce the negative attitude of COVID-19 vaccine among the adult population. Keywords: COVID-19, vaccine, perception, adult population.
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Dayan, Selin, and Volkan Öngel. "Occupational Health and Safety Practices Evaluation by Health Workers: An Example of Private Hospital." In International Conference on Eurasian Economies. Eurasian Economists Association, 2016. http://dx.doi.org/10.36880/c07.01710.
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The aim of this study is to identify distribution of occupational diseases and related health complaints among health workers and also to detect employee apprehensions about availability of occupational health and safety issues in the workplace. The application area of this study is a private hospital subservient in Istanbul and accredited by JCI. Within the framework of this study, a survey which contains 8 queries about demographic and personal features, 12 queries about occupational diseases and related complaints and 24 queries about occupational health and safety issues is applied to health staff employed in variable departments and positions in this hospital. The reliability coefficient of this survey is found .816 (Cronbach’s Alpha). In the conclusion of this study; it is detected that the employee’s perception about the occupational health and safety issues in the workplace has a positive aspect. Moreover, arm and leg pains (%65.6), over-fatigue (%64.1), insomnia (%59.7) and presence of venous varicosises (%54.2) were the most determined diseases and complaints, which are considered as work-originated among healthcare workers. In accordance with findings, the privileged improvements about the problems in occupational health and safety issues in this hospital have been presented.
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Rahelli, Yeti, Agus Kristiyanto, and Bhisma Murti. "Reliability Tests on Dietary Intake, Physical Activity, Social Support, and Social Cognitive Questionnaires of Overweight And Obesity in Female Adolescents." In The 7th International Conference on Public Health 2020. Masters Program in Public Health, Universitas Sebelas Maret, 2020. http://dx.doi.org/10.26911/the7thicph.02.65.
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Background: Obesity is reaching epidemic proportions globally, with a threefold increase from 1975 to 2016. The percentage of obese adolescents aged 12-19 years increased from 5% to 21% over the same period. Social Cognitive Theory can determine human behavior in limiting food intake (diet) and regular physical activity. A valid and accurate measuring instrument for the factors influencing obesity is essential. This study aimed to determine the reliability of measuring instruments for diet, physical activity, social support, and Social Cognitive Theory on overweight and obesity in adolescent girls. Subjects and Method: This study used primary data. As many as 15 study subjects were selected by simple random sampling. The value of item-rest correlation and Cronbach’s alpha were examined using split half method run on Stata 14. Results: Dietary intake questionnaire haditem-rest correlation ≥0.20 with Cronbach alpha= 0.77. Physical activity questionnaire had item-rest correlation ≥0.20 with Cronbach alpha= 0.78. Social support questionnaire had item-rest correlation ≥0.20 with Cronbach alpha= 0.88. Social cognitive theory questionnaire had item-rest correlation ≥0.20 with Cronbach alpha= 0.89. Conclusion: Dietary intake, physical activity, and social cognitive questionnaires are reliable to be used. Keywords: reliability, item-rest correlation, Cronbach alpha Correspondence: Yeti Rahelli. Masters Program in Public Health, Universitas Sebelas Maret. Jl. Ir. Sutami 36A, Surakarta 57126, Central Java. Email: yetirahelli@student.uns.ac.id. Mobile: 082179940557. DOI: https://doi.org/10.26911/the7thicph.02.65