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Relevant bibliographies by topics / Study validity

Academic literature on the topic 'Study validity'

Author: Grafiati

Published: 18 August 2021

Last updated: 1 February 2022

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Contents

Journal articles
Dissertations / Theses
Books
Book chapters
Conference papers
Reports

Journal articles on the topic "Study validity":

1

Zohar, Noam, and Raymond De Vries. "Study validity questioned." American Journal of Obstetrics and Gynecology 204, no. 4 (April 2011): e14. http://dx.doi.org/10.1016/j.ajog.2010.08.052.

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Sağlam, Halil İbrahim, and Sinem Sayımlı. "Oral History Attitude Scale (OHAS) Validity and Reliability Study." International Journal of Psychology and Educational Studies 5, no. 1 (January 1, 2018): 1–8. http://dx.doi.org/10.17220/ijpes.2018.01.001.

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Meroufel, Hanifi. "Comparative Study between Validity Indices to Obtain the Optimal Cluster." International Journal of Computer and Electrical Engineering 9, no. 1 (2017): 343–50. http://dx.doi.org/10.17706/ijcee.2017.9.1.343-350.

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AKBIYIK, Melike, and Murat SENTURK. "Assessment Scale of Academic Enablers: A Validity and Reliability Study." Eurasian Journal of Educational Research 19, no. 80 (April 3, 2019): 1–26. http://dx.doi.org/10.14689/ejer.2019.80.11.

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Sussmann, Mario, and Donald U. Robertson. "The validity of validity: An analysis of validation study designs." Journal of Applied Psychology 71, no. 3 (1986): 461–68. http://dx.doi.org/10.1037/0021-9010.71.3.461.

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Retzlaff, Paul. "MCMI-III Diagnostic Validity: Bad Test or Bad Validity Study." Journal of Personality Assessment 66, no. 2 (April 1996): 431–35. http://dx.doi.org/10.1207/s15327752jpa6602_19.

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BULUT KILIÇ, İnci. "Validity and Reliability Study for Studio Work Course Time Management Scale." Journal of Educational Sciences Research 6, no. 2 (October 30, 2016): 113–29. http://dx.doi.org/10.12973/jesr.2016.62.7.

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Iliman Puskulluoglu, Elif, and Yahya Altinkurt. "Development of Teachers’ Structural Empowerment Scale (TSES): A Validity and Reliability Study." Üniversitepark Bülten 6, no. 1 (February 15, 2017): 118–32. http://dx.doi.org/10.22521/unibulletin.2017.61.10.

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Gur, Emel. "Attitudes towards violence scale in adults: A study of validity and reliability." New Trends and Issues Proceedings on Humanities and Social Sciences 4, no. 2 (August 28, 2017): 120–27. http://dx.doi.org/10.18844/prosoc.v4i2.2473.

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OZCAN, Hasan, and Esra KOCA. "Development of the Attitude towards Science Scale: A Validity and Reliability Study." Eurasian Journal of Educational Research 20, no. 85 (February 1, 2020): 109–34. http://dx.doi.org/10.14689/ejer.2020.85.6.

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Dissertations / Theses on the topic "Study validity":

1

Perkins, Anne Witt. "Learning and Study Strategies Inventory (LASSI): A validity study." W&M ScholarWorks, 1991. https://scholarworks.wm.edu/etd/1539618615.

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The purpose of this study was to examine the construct and predictive validity of the Learning and Study Strategies Inventory (LASSI). The LASSI is an instrument designed to assess utilization of learning and study strategies and methods for the purpose of measuring strategy use, diagnosing deficiencies, and prescribing intervention. The literature suggests that valid instruments of this type are sadly lacking. The LASSI User's Manual, however, presents no statistical evidence of instrument validity. The need for this verification became crucial with The College of William and Mary's selection of the inventory for administration to the 1990 freshman class. Using data obtained from this administration and a subsequent retest, statistical analyses were conducted to confirm instrument reliability and examine construct and predictive validity. Results indicated that while reliable, the ten LASSI scales possessed no construct validity, as measured by factor analysis, and low predictive validity when first semester college grade point average was the performance criterion. Until the completion of further research, the validity of the LASSI is at best suspect, and use of the instrument is not recommended.

2

Fortin, Luc 1949. "Functional cervical scale : a reliability and validity study." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23888.

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Background. There are two specific scales designed to assess neck pain. They have weaknesses and limited assessment. A Functional Cervical Scale (FCS) based on neck disorders disability was developed after literature review and consultation with patients and medical specialists. Thirty-two items were tested.
Study design. Two hundred and ten patients with neck pain answered the FCS and other questionnaires on work, medication intake and quality of life. Another copy of the FCS was mailed to the subjects who had to return it in a pre-stamped envelope.
Methods. Item selection analyses were done. Test-retest and internal consistency were calculated to assess reliability. Univariate and multivariate analyses were conducted and correlations with other measures of neck pain were calculated to assess construct validity.
Results. Through item selection procedures, the number of items was reduced from 32 to 30. Intraclass correlation coefficient (ICC) for test-retest was 0.93 and Cronbach's alpha coefficient was 0.97. Correlations for validity were good.
Conclusion. FCS showed excellent reliability and good validity. The latter needs more assessment. The sensitivity to change should be estimated.

3

Gaede, Rolf Joachim. "Validity in image-based research : a Delphi study." Thesis, Stellenbosch : University of Stellenbosch, 2004. http://hdl.handle.net/10019.1/16049.

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Thesis (DPhil)--University of Stellenbosch, 2004.
ENGLISH ABSTRACT: The area of study is the notion of validity in image-based research, i.e. research approaches where visual images such as photographs or video recordings form an integral part of one or more of the methods used. In the literature investigation chapters of the study, (1) the notion of validity is reviewed with special reference to contributions by Cook and Campbell, Guba and Lincoln, Kvale, Lather and Morse; (2) the inherent properties of visual images are discussed from a semiotic perspective, and (3) following a discussion of reflexivity in image-based research, the various domains of image-based research practice are demarcated according to the unit of analysis, the data format, the researcher role (outsider, insider, participant) and the production of the visual material (ex ante or ex post with weak or strong researcher control). The literature investigation chapters were taken as the point of departure for the development of a conceptual framework for assessing validity in image-based research, the mechanics of which are illustrated with reference to selected aspects of image-based research projects by Lomax and Casey, Clark and Zimmer, Rich and Chalfen, DuFon and Chaplin. The conceptual framework was refined on the strength of a Delphi study. The Delphi procedure involved canvassing and pooling the opinions of experts in the field of image-based research about issues of validity with a view to ensure that the assumptions made during the development of the conceptual framework fit sufficiently with image-based research practice. Flowing from the literature investigation chapters as well as the Delphi procedure, the central thesis of the study is that the notion of validity is in the first instance contextdependent and that this is compounded in the case of image-based research by the relative instability of iconic codes and the strong drift towards 'unlimited' semiosis inherent in the visual communication process.
AFRIKAANSE OPSOMMING: Die studieveld behels ‘n ondersoek na die gedagte van geldigheid soos van toepassing op beeldgebaseerde navorsing, d.w.s. navorsingsbenaderings waar visuele beelde soos foto’s of video-opnames ‘n integrale deel uitmaak maak een of meer van die metodes wat gebruik word. In die hoofstukke wat die literatuurstudie uitmaak, word (1) die gedagte van geldigheid onder die loep geneem met spesifieke verwysing na die bydraes van Cook en Campbell, Guba en Lincoln, Kvale, Lather en Morse, (2) word die inherente eienskappe van visuele beelde vanaf 'n semiotiese oogpunt bespreek, en (3) word die verskeie velde van beeldgebaseerde navorsingspraktyk afgebaken volgens die eenheid van ontleding, die dataformaat, die rol van die navorser (buitestaander, binnestaander, deelnemer) en die produksie van die visuele materiaal (ex ante of ex post met sterk of swak navorserkontrole). Die hoofstukke wat gemoeid is met die literatuurstudie is as vertrekpunt geneem vir die daarstelling van ‘n konsepsuele raamwerk vir geldigheid aangaande beeldgebaseerde navorsing, en die werking hiervan is geïllustreer met verwysing na geselekteerde aspekte van beeldgebaseerde navorsing deur Lomax en Casey, Clark en Zimmer, Rich en Chalfen, DuFon end Chaplin. Hierdie konsepsuele raamwerk is verder verfyn op grond van ‘n Delphi-prosedure. Die Delphi-prosedure het behels dat die opinies van deskundiges in die veld van beeldgebaseerde navorsing aangaande kwessies van geldigheid ingewin en saamgevoeg is met die oog om te verseker dat die aannames wat gemaak is ten tyde van die ontwikkeling van die konsepsuele raamwerk genoegsaam gepas is vir die praktyk van beeldgebaseerde navorsing. Die tesis van die studie, gebaseer op die uitkomste van die literatuurstudie en die Delphi-prosedure, is dat die gedagte van geldigheid konteks-afhanklik is, wat in die geval van beeldgebaseerde navorsing vererger word deur die feit dat ikoniese kodes relatiefonstabiel is en dat die proses van visuele kommunikasie 'n sterk tendens na 'eindelose' semiosis toon.

4

Moxley-South, Kathleen, and Kathleen Moxley-South. "The Environmental Screening Questionnaire: Validity and Utility Study." Thesis, University of Oregon, 2012. http://hdl.handle.net/1794/12533.

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Accumulative family risk factors can have a detrimental impact on young children's social emotional development and future school readiness. Identifying family risk and resilience factors can be a first step in linking families to needed services. Programs that serve families and children need a brief and valid screening tool that can quickly assess family strengths and needs. This study examined the validity and utility of the Environmental Screening Questionnaire (ESQ), a brief caregiver report of the family's situation. Participants included 324 parent/child (ages 3-60 months) dyads from a sample of programs that serve at-risk families (n = 72) and an online sample of caregivers (n = 252). Results from data analyses evaluating the validity and utility were promising. Validity was investigated by examining convergent validity using the Parenting Stress Index-Short Form. Caregivers from the online sample who had more family risk factors, as identified in the ESQ, were more likely to have elevated levels of stress (r = .23). Moreover, children from families with increased risk factors tended to have higher scores on the Ages and Stages Questionnaire: Social Emotional (ASQ:SE) for two age intervals, 6 and 48 months, for the online sample. Utility data were gathered from caregivers and program staff. Results suggest the ESQ is an effective and useful screening measure that can help professionals identify areas of resource need, organize referral information, and monitor family outcomes. Caregivers found the ESQ to be helpful in understanding personal areas of risk and how risk and resilience factors can affect children's social emotional development. This study assisted in developing preliminary "red flag" risk factors that may be useful to programs serving families and children. Testing of the "red flags" is discussed for future research.
10000-01-01

5

McQuarrie, Maureen Anne. "An empirical validity study of the Canada French individual achievement test." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/28171.

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Smyth, Amy Marie. "An investigation into the initial validity of the Canterbury behaviour screening protocol (CBSP): a pilot study." Thesis, University of Canterbury. Health Sciences, 2006. http://hdl.handle.net/10092/1406.

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This study was a pilot investigation of the initial validity of a newly developed behaviour-screening instrument for early intervention service providers. Group Special Education, Early Intervention (GSE/EI) (2005) adapted the Canterbury Behaviour Screening Protocol (CBSP) from a widely used behaviour-screening instrument the Early Screening Project. The CBSP consisted of 49 items in 2 checklists. GSE/EI identified 10 early childhood centres with a total roll of 712 to participate in the study. Staff were asked to categorise children's problem behaviours as either withdrawn/isolated or aggressive/oppositional, using profiles provided. Next, they were asked to nominate 2 children in each category, and an additional 2 children in either category, and to rank them from most concerning to least concerning. Centres identified 25 children in the withdrawn/isolated category, and 28 children in the aggressive/oppositional category. Staff completed checklists for children with parent/carer consent, which were scored according to preset protocols. Scores on the CBSP were assigned risk values ranging from "extreme" to "no risk". The estimated prevalence of "high" to "extreme" behaviour problems was 7.2% based on CBSP protocols and teacher nominations. The level of agreement between teacher rank and CBSP score was 79%, and this determined the initial specificity. Next, independent observations of the behaviour of the nominated children were conducted during free play periods at the centres by an observer blind to the children's nominated category, teacher ranking or checklist score. Risk levels were assigned based on the observation scores, using a cut-off value of 37% time spent in problem behaviour for girls and 40% for boys. There was agreement in terms of teacher rank and observation scores, (categorised into either "no risk" and "at/high/extreme risk) for 65% for children in the withdrawn/isolated category, and 75% for children in the aggressive/oppositional category. The level of agreement between the CBSP score and the observations (categorised into either "no risk" or "at/high/extreme" risk) was 40% for children in the withdrawn/isolated category, and 46% for children in the aggressive/oppositional category. Using the cut-off values, a prevalence estimate for high risk or extreme risk for behaviour disorders, based on independent observation of children, was 3.2%. Centre staff completing a feedback form determined the social validity of the CBSP. Although responses were generally favourable, a number of suggestions were also made to improve the procedure. Despite limitations in the design of the draft, the CBSP shows promise for a first step in a screening procedure designed to screen New Zealand early childhood centres for children who may be at risk for developing behaviour and/or social emotional problems. The independent observation may also be useful as a second step, prior to extensive eligibility assessment. A number of suggestions were made for future drafts such as addressing the limitations specified, conducting the CBSP with a greater number of children, and determining the concurrent validity, and test-retest reliability.

7

Stanley, Nile Van. "A concurrent validity study of the emergent reading level." Gainesville, FL, 1986. http://www.archive.org/details/concurrentvalidi00stan.

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Moore, Beverly. "The Mathematics Anxiety Rating Scale-Abbreviated: A Validity Study." TopSCHOLAR®, 1988. https://digitalcommons.wku.edu/theses/2653.

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The purpose of this study was to investigate the validity of a 25-item abbreviated version of the Mathematics Anxiety Rating Scale (Richardson & Suinn, 1972). Convergent and discriminant properties of the Mathematics Anxiety Rating Scale -Abbreviated (Alexander, Cobb, & Martray, 1986), as well as its sensitivity to individual differences were examined. Convergent validity was examined by studying the correlation between the two math anxiety scales, the MARS -A and the Fennema-Sherman Math Anxiety scale (FSMA). Discriminant validity was examined by studying the correlations between: (a) the MARS-A and a test anxiety scale (TAI), and (b) between the MARS -A and a general trait anxiety scale (STAI). Stepwise multiple regression analysis and Pearson Product -Moment correlation coefficients were used to investigate sensitivity to individual differences. The MARS-A functioned as the criterion variable. The predictor variables were American College Test (ACT) math scores, math coursework grade (Grade), confidence towards learning mathematics as measured by the Fennema-Sherman Confidence Scale (FSC), race (Race), sex (Sex), and age (Age). Convergent validity was demonstrated by a relatively high correlation between scores yielded by the two measures of math anxiety, viz., the MARS-A and FSMA (r = -.61). Evidence of discriminant validity was demonstrated by positive but compared to the convergent validity coefficient, lower correlations between the MARS -A and TAI (r = .44), and yet still a lower correlation between the MARS -A and the STAI (r = .31). The positive correlations among these instruments indicated that instruments of general trait anxiety, test anxiety, and mathematics anxiety measure various aspects of anxiety; however, the order in which the correlations rank suggest that these instruments do not all measure the same trait. The degree of correlation among scores supports the idea that as the instrument becomes more item specific (from measuring general trait anxiety to test anxiety to math anxiety), the correlation between scores obtained on the instruments become stronger in magnitude. FSC was the only predictor variable to enter the stepwise multiple regression prediction equation. The relationship indicates that confidence towards learning mathematics is the single, best predictor of scores obtained on the MARS -A. The negative direction of the correlation between FSC and MARS-A scores suggests that the more positive one's confidence is towards learning math, the lower one's math anxiety level. Although the MARS -A correlated significantly with other predictor variables, viz., ACT, Grade, and Age the shared variance between FSC, ACT, and Grade, and between ACT and Age imply that once the contribution of FSC to MARS-A scores was accounted for, remaining variables made no unique contribution.

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Holloway, Anne E. "Aberrant self-promotion versus Machiavellianism: a discriminant validity study." Thesis, Virginia Tech, 1994. http://hdl.handle.net/10919/41404.

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The purpose of the present study was to provide evidence of discriminant validity for the aberrant self-promotion construct proposed by Gustafson and Ritzer (1994a). The study attempted to differentiate the aberrant self-promotion construct from the Machiavellianism construct proposed by Christie (1970a). The aberrant self-promoter (ASP) has been conceptualized as exhibiting high self-esteem, low social desirability, and a high degree of antisocial behavior. In contrast, the Machiavellian has been conceptualized as an individual who is coldly rational in determining his or her actions and who is adept at engaging in manipulation to achieve a desired end. It was proposed in the present study that although both the ASP and the Machiavellian may be characterized by high narcissism, high self-esteem, and low social desirability, the Machiavellian does not exhibit the antisocial behavior that is a key component of the ASP pattern. The proposed differentiation, based on 28 undergraduate ASPs and 19 undergraduate Machiavellians, involved a structured interview and a prisoner's dilemma game. The results from the interview showed that the ASPs scored significantly higher on the total score, as well as on the subscore for a narcissism-related factor and on the subscore for an antisocial behavior factor. The prisoner's dilemma results, however, revealed no significant differences between the ASPs and Machs. Discussion focused on the insufficient salience of the prisoner's dilemma experimental situation and on the research and organizational implications of the ASP/Machiavellian differentiation supported by the interview.
Master of Science

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Mattox, Diane D. "A predictive validity study of the kindergarten diagnostic instrument." The Ohio State University, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=osu1298661201.

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Books on the topic "Study validity":

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Roussos, Louis A. LSAT item-type validity study. Newtown, PA: Law School Admission Council, 1998.

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Roussos, Louis A. LSAT item-type validity study. Newtown, PA: Law School Admission Council, 1998.

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Norris, John Michael. Validity evaluation in language assessment. Frankfurt am Main: Peter Lang, 2008.

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Gordon, Edwin. Predictive validity study of AMMA: A one-year longitudinal predictive validity study of the Advanced measures of music audiation. Chicago, IL: G.I.A. Publications, 1990.

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Vansickle, Timothy R. Mapping occupations: A longitudinal validity study based on vocational interests. Iowa City, Iowa: American College Testing Program, 1990.

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Smith, Keith. The firo-B: A study of its reliability and validity. Norwich: University of East Anglia, 1993.

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Haytin, Daniel Leigh. The validity of the case study: Deviance and self-destruction. New York: P. Lang, 1988.

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Doonan, Frank. A reliability and validity study of selection procedures in general, and a predictive validity study of Saville and Holdsworth's occupational personality questionnaire - Concept 4. [s.l: The Author], 1991.

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Zetler, Alan G. Montana validation of the NTE core battery: Study report. S.l: s.n., 1986.

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Chaudron, Craig. Reliability and validity in second language classroom research. [Honolulu, Hawaii]: University of Hawaii, 1988.

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Book chapters on the topic "Study validity":

1

Grzyb, Tomasz, and Dariusz Dolinski. "Internal and external validity." In The Field Study in Social Psychology, 55–65. London: Routledge, 2021. http://dx.doi.org/10.4324/9781003092995-5.

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Srinivasan, R., and C. P. Lohith. "Pilot Study—Assessment of Validity and Reliability." In India Studies in Business and Economics, 43–49. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-3590-6_6.

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Aarnio, Aulis. "The Formal Validity, Efficacy, and Acceptability of Legal Norms." In Essays on the Doctrinal Study of Law, 125–30. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-1655-1_16.

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Fidan, İnci Öztürk, and Tuncer Fidan. "Perceived Uncertainty: A Study of Validity and Reliability." In Chaos, Complexity and Leadership 2017, 509–22. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-89875-9_42.

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Perron, Brian E., David Cordova, Christopher Salas-Wright, and Michael G. Vaughn. "Validity: Conceptual and Methodological Issues in Substance Abuse Research." In Research Methods in the Study of Substance Abuse, 235–49. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-55980-3_12.

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Sumrin, Samina, and Suraksha Gupta. "Establishing validity and reliability in case study research projects." In The Routledge Companion to Marketing Research, 119–31. New York : Routledge, 2021. | Series: Routledge companions in business, management and accounting: Routledge, 2021. http://dx.doi.org/10.4324/9781315544892-9.

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Starczewski, Artur, and Adam Krzyżak. "A Study of Cluster Validity Indices for Real-Life Data." In Artificial Intelligence and Soft Computing, 148–58. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-59060-8_15.

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Erçetin, Şefika Şule, and Mehmet Sabir Çevik. "A Study on Validity and Reliability of Teacher Efficacy Scale." In Chaos, Complexity and Leadership 2017, 411–30. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-89875-9_34.

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Delnoij, L. E. C., J. P. W. Janssen, K. J. H. Dirkx, and R. L. Martens. "Designing an Online Self-assessment for Informed Study Decisions: The User Perspective." In Addressing Global Challenges and Quality Education, 74–86. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-57717-9_6.

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AbstractThis paper presents the results of a study, carried out as part of the design-based development of an online self-assessment for prospective students in higher online education. The self-assessment consists of a set of tests – predictive of completion – and is meant to improve informed decision making prior to enrolment. The rationale being that better decision making will help to address the ongoing concern of non-completion in higher online education. A prototypical design of the self-assessment was created based on an extensive literature review and correlational research, aimed at investigating validity evidence concerning the predictive value of the tests. The present study focused on investigating validity evidence regarding the content of the self-assessment (including the feedback it provides) from a user perspective. Results from a survey among prospective students (N = 66) indicated that predictive validity and content validity of the self-assessment are somewhat at odds: three out of the five tests included in the current prototype were considered relevant by prospective students. Moreover, students rated eleven additionally suggested tests – currently not included – as relevant concerning their study decision. Expectations regarding the feedback to be provided in connection with the tests include an explanation of the measurement and advice for further preparation. A comparison of the obtained scores to a reference group (i.e., other test-takers or successful students) is not expected. Implications for further development and evaluation of the self-assessment are discussed.

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Wagemaker, Hans. "Study Design and Evolution, and the Imperatives of Reliability and Validity." In IEA Research for Education, 7–21. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53081-5_2.

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Conference papers on the topic "Study validity":

1

Chouikhi, Hasna, Malika Charrad, and Nadia Ghazzali. "A comparison study of clustering validity indices." In 2015 Global Summit on Computer & Information Technology (GSCIT). IEEE, 2015. http://dx.doi.org/10.1109/gscit.2015.7353330.

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Fahl, Sascha, Marian Harbach, Yasemin Acar, and Matthew Smith. "On the ecological validity of a password study." In the Ninth Symposium. New York, New York, USA: ACM Press, 2013. http://dx.doi.org/10.1145/2501604.2501617.

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Li Lan, Yang Shuangshuang, and He Wen. "Study on a new mixed cluster validity index." In 2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE). IEEE, 2012. http://dx.doi.org/10.1109/omee.2012.6343541.

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Kim, M. J. "The numerical study: validity of the perturbation theory." In 16th Congress of the International Commission for Optics: Optics as a Key to High Technology. SPIE, 1993. http://dx.doi.org/10.1117/12.2308546.

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Guizzo, Giovani, Federica Sarro, and Mark Harman. "Cost measures matter for mutation testing study validity." In ESEC/FSE '20: 28th ACM Joint European Software Engineering Conference and Symposium on the Foundations of Software Engineering. New York, NY, USA: ACM, 2020. http://dx.doi.org/10.1145/3368089.3409742.

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Golder, V., M. Huq, K. Franklyn, A. Calderone, A. Lateef, CS Lau, A. Lee, et al. "437 Construct validity assessment of the lupus low disease activity state (lldas) – a case based validity study." In LUPUS 2017 & ACA 2017, (12th International Congress on SLE &, 7th Asian Congress on Autoimmunity). Lupus Foundation of America, 2017. http://dx.doi.org/10.1136/lupus-2017-000215.437.

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Napitupulu, Darmawan, and Dana Indra Sensuse. "Validity and reliability study for e-Government success factors." In 2014 International Conference on Cyber and IT Service Management (CITSM). IEEE, 2014. http://dx.doi.org/10.1109/citsm.2014.7042165.

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Fang, Shu, and Zaiqiang Ku. "Study on Mathematical Validity Learning Strategy of SPOC Platform." In Proceedings of the 2019 International Conference on Mathematics, Big Data Analysis and Simulation and Modelling (MBDASM 2019). Paris, France: Atlantis Press, 2019. http://dx.doi.org/10.2991/mbdasm-19.2019.1.

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HWU, HAI-GWO, and TA-JEN CHANG. "QUICK/SLOW NEUROLEPTIC RESPONSE IN SCHIZOPHRENIA: A VALIDITY STUDY." In IX World Congress of Psychiatry. WORLD SCIENTIFIC, 1994. http://dx.doi.org/10.1142/9789814440912_0102.

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Yan, Qin-Jiang, and Qing-Yu Li. "The Study of the Knowledge Increment of Team Study and the Study-Time Validity." In 2007 International Conference on Wireless Communications, Networking and Mobile Computing. IEEE, 2007. http://dx.doi.org/10.1109/wicom.2007.801.

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Reports on the topic "Study validity":

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Simpson, Gwen. A construct validity study for the Women workers scale questionnaire. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.2968.

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Willard, Stephen. A Validity Study of Select Symbol-Referent Relationships Using Semantic Differential Ratings. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.2589.

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Scheck, B. MMPI discrimination of incest offenders : a validity study of the IC, SV, and PE subscales. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.5585.

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McCrea, Michael. An Independent, Prospective, Head to Head Study of the Reliability and Validity of Neurocognitive Test Batteries for the Assessment of Mild Traumatic Brain Injury. Fort Belvoir, VA: Defense Technical Information Center, March 2013. http://dx.doi.org/10.21236/ada573016.

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Punjabi, Maitri, Julianne Norman, Lauren Edwards, and Peter Muyingo. Using ACASI to Measure Gender-Based Violence in Ugandan Primary Schools. RTI Press, March 2021. http://dx.doi.org/10.3768/rtipress.2021.rb.0025.2104.

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Abstract:

School-related gender-based violence (SRGBV) remains difficult to measure because of high sensitivity and response bias. However, most SRGBV measurement relies on face-to-face (FTF) survey administration, which is susceptible to increased social desirability bias. Widely used in research on sensitive topics, Audio Computer-Assisted Self-Interview (ACASI) allows subjects to respond to pre-recorded questions on a computerized device, providing respondents with privacy and confidentiality. This brief contains the findings from a large-scale study conducted in Uganda in 2019 where primary grade 3 students were randomly selected to complete surveys using either ACASI or FTF administration. The surveys covered school climate, gender attitudes, social-emotional learning, and experiences of SRGBV. Through this study, we find that although most survey responses were comparable between ACASI and FTF groups, the reporting of experiences of sexual violence differed drastically: 43% of students in the FTF group versus 77% of students in the ACASI group reported experiencing sexual violence in the past school term. We also find that factor structures are similar for data collected with ACASI compared with data collected FTF, though there is weaker evidence for construct validity for both administration modes. We conclude that ACASI is a valuable tool in measuring sensitive sub-topics of SRGBV and should be utilized over FTF administration, although further psychometric testing of these surveys is recommended.

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Deb, Robin, Paramita Mondal, and Ardavan Ardeshirilajimi. Bridge Decks: Mitigation of Cracking and Increased Durability—Materials Solution (Phase III). Illinois Center for Transportation, December 2020. http://dx.doi.org/10.36501/0197-9191/20-023.

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Abstract:

Type K cement offers a lower slump than conventional concrete, even at a higher water-to-cement ratio. Therefore, a suitable chemical admixture should be added to the Type K concrete mix design at a feasible dosage to achieve and retain target slump. In this project, a compatibility study was performed for Type K concrete with commercially available water-reducing and air-entraining admixtures. Slump and air content losses were measured over a period of 60 minutes after mixing and a particular mid-range water-reducing admixture was found to retain slump effectively. Furthermore, no significant difference in admixture interaction between conventional and Type K concrete was observed. Another concern regarding the use of Type K concrete is that its higher water-to-cement ratio can potentially lead to higher permeability and durability issues. This study also explored the effectiveness of presoaked lightweight aggregates in providing extra water for Type K hydration without increasing the water-to-cement ratio. Permeability of concrete was measured to validate that the use of presoaked lightweight aggregates can lower water adsorption in Type K concrete, enhancing its durability. Extensive data analysis was performed to link the small-scale material test results with a structural test performed at Saint Louis University. A consistent relation was established in most cases, validating the effectiveness of both testing methods in understanding the performance of proposed shrinkage-mitigation strategies. Stress analysis was performed to rank the mitigation strategies. Type K incorporation is reported to be the most effective method for shrinkage-related crack mitigation among the mixes tested in this study. The second-best choice is the use of Type K in combination with either presoaked lightweight aggregates or shrinkage-reducing admixtures. All mitigation strategies tested in this work were proved to be significantly better than using no mitigation strategy.

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Latané, Annah, Jean-Michel Voisard, and Alice Olive Brower. Senegal Farmer Networks Respond to COVID-19. RTI Press, June 2021. http://dx.doi.org/10.3768/rtipress.2021.rr.0045.2106.

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This study leveraged existing data infrastructure and relationships from the Feed the Future Senegal Naatal Mbay (“flourishing agriculture”) project, funded by the US Agency for International Development (USAID) and implemented by RTI International from 2015 to 2019. The research informed and empowered farmer organizations to track and respond to rural households in 2020 as they faced the COVID-19 pandemic. Farmer organizations, with support from RTI and local ICT firm STATINFO, administered a survey to a sample of 800 agricultural households that are members of four former Naatal Mbay–supported farmer organizations in two rounds in August and October 2020. Focus group discussions were conducted with network leadership pre- and post–data collection to contextualize the experience of the COVID-19 shock and to validate findings. The results showed that farmers were already reacting to the effects of low rainfall during the 2019 growing season and that COVID-19 compounded the shock through disrupted communications and interregional travel bans, creating food shortages and pressure to divert seed stocks for food. Food insecurity effects, measured through the Household Food Insecurity Access Scale and cereals stocks, were found to be greater for households in the Casamance region than in the Kaolack and Kaffrine regions. The findings also indicate that farmer networks deployed a coordinated response comprising food aid and access to personal protective equipment, distribution of short-cycle legumes and grains (e.g., cowpea, maize) and vegetable seeds, protection measures for cereals seeds, and financial innovations with banks. However, food stocks were expected to recover as harvesting began in October 2020, and the networks were planning to accelerate seed multiplication, diversify crops beyond cereals, improve communication across the network. and mainstream access to financial instruments in the 2021 growing season. The research indicated that the previous USAID-funded project had likely contributed to the networks’ COVID-19 resilience capacities by building social capital and fostering the new use of tools and technologies over the years it operated.

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Yan, Yujie, and Jerome F. Hajjar. Automated Damage Assessment and Structural Modeling of Bridges with Visual Sensing Technology. Northeastern University, May 2021. http://dx.doi.org/10.17760/d20410114.

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Abstract:

Recent advances in visual sensing technology have gained much attention in the field of bridge inspection and management. Coupled with advanced robotic systems, state-of-the-art visual sensors can be used to obtain accurate documentation of bridges without the need for any special equipment or traffic closure. The captured visual sensor data can be post-processed to gather meaningful information for the bridge structures and hence to support bridge inspection and management. However, state-of-the-practice data postprocessing approaches require substantial manual operations, which can be time-consuming and expensive. The main objective of this study is to develop methods and algorithms to automate the post-processing of the visual sensor data towards the extraction of three main categories of information: 1) object information such as object identity, shapes, and spatial relationships - a novel heuristic-based method is proposed to automate the detection and recognition of main structural elements of steel girder bridges in both terrestrial and unmanned aerial vehicle (UAV)-based laser scanning data. Domain knowledge on the geometric and topological constraints of the structural elements is modeled and utilized as heuristics to guide the search as well as to reject erroneous detection results. 2) structural damage information, such as damage locations and quantities - to support the assessment of damage associated with small deformations, an advanced crack assessment method is proposed to enable automated detection and quantification of concrete cracks in critical structural elements based on UAV-based visual sensor data. In terms of damage associated with large deformations, based on the surface normal-based method proposed in Guldur et al. (2014), a new algorithm is developed to enhance the robustness of damage assessment for structural elements with curved surfaces. 3) three-dimensional volumetric models - the object information extracted from the laser scanning data is exploited to create a complete geometric representation for each structural element. In addition, mesh generation algorithms are developed to automatically convert the geometric representations into conformal all-hexahedron finite element meshes, which can be finally assembled to create a finite element model of the entire bridge. To validate the effectiveness of the developed methods and algorithms, several field data collections have been conducted to collect both the visual sensor data and the physical measurements from experimental specimens and in-service bridges. The data were collected using both terrestrial laser scanners combined with images, and laser scanners and cameras mounted to unmanned aerial vehicles.