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Dissertations / Theses on the topic 'Chi-square test'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Roberts, Georgia Ruth Carleton University Dissertation Psychology. "Contributions to chi-squared tests with survey data." Ottawa, 1985.

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2

De, Champlain André F. "Assessing test dimensionality using two approximate chi-square statistics." Thesis, University of Ottawa (Canada), 1992. http://hdl.handle.net/10393/7848.

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Cheng, Kai-ho. "The Chi-square test when the expected frequencies are less than 5." Click to view the E-thesis via HKUTO, 2007. http://sunzi.lib.hku.hk/HKUTO/record/B39558708.

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鄭啟豪 and Kai-ho Cheng. "The Chi-square test when the expected frequencies are less than 5." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B39558708.

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Mullen, Jerry D. (Jerry Davis). "A Comparison of Some Continuity Corrections for the Chi-Squared Test in 3 x 3, 3 x 4, and 3 x 5 Tables." Thesis, North Texas State University, 1987. https://digital.library.unt.edu/ark:/67531/metadc331001/.

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This study was designed to determine whether chis-quared based tests for independence give reliable estimates (as compared to the exact values provided by Fisher's exact probabilities test) of the probability of a relationship between the variables in 3 X 3, 3 X 4 , and 3 X 5 contingency tables when the sample size is 10, 20, or 30. In addition to the classical (uncorrected) chi-squared test, four methods for continuity correction were compared to Fisher's exact probabilities test. The four methods were Yates' correction, two corrections attributed to Cochran, and Mantel's correction. The stud

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Steele, Michael C., and n/a. "The Power of Categorical Goodness-Of-Fit Statistics." Griffith University. Australian School of Environmental Studies, 2003. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20031006.143823.

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The relative power of goodness-of-fit test statistics has long been debated in the literature. Chi-Square type test statistics to determine 'fit' for categorical data are still dominant in the goodness-of-fit arena. Empirical Distribution Function type goodness-of-fit test statistics are known to be relatively more powerful than Chi-Square type test statistics for restricted types of null and alternative distributions. In many practical applications researchers who use a standard Chi-Square type goodness-of-fit test statistic ignore the rank of ordinal classes. This thesis reviews literature i

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Steele, Michael C. "The Power of Categorical Goodness-Of-Fit Statistics." Thesis, Griffith University, 2003. http://hdl.handle.net/10072/366717.

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The relative power of goodness-of-fit test statistics has long been debated in the literature. Chi-Square type test statistics to determine 'fit' for categorical data are still dominant in the goodness-of-fit arena. Empirical Distribution Function type goodness-of-fit test statistics are known to be relatively more powerful than Chi-Square type test statistics for restricted types of null and alternative distributions. In many practical applications researchers who use a standard Chi-Square type goodness-of-fit test statistic ignore the rank of ordinal classes. This thesis reviews literature i

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8

Stasiukaitytė, Irma. "Infarkto gydymo įvairiais vaistais statistiniai tyrimo metodai." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2004. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2004~D_20040610_174400-77084.

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The goal of the present thesis is to ascertain the impact of different drugs, intended for the infarction treatment; investigation of the other factors, which may stipulate bleeding in the course of the operation and within the post-operation period. The investigation was carried out in two stages. During the first stage the data was accumulated for processing (investigation of the sample homogeneity and normality); the second stage implied solution of the statistical tasks (solution of the tasks, which correspond to the goals of the thesis). The methods of data analysis and the models of bina

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Pang, Xiao L. "Assessing the performance of the approximate chi-square and Stout's T statistics with different test structures." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0010/NQ52277.pdf.

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Wu, Baohua. "Data Driven Approaches to Testing Homogeneity of Intraclass Correlation Coefficients." Digital Archive @ GSU, 2010. http://digitalarchive.gsu.edu/math_theses/92.

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The test of homogeneity for intraclass correlation coefficients has been one of the active topics in statistical research. Several chi-square tests have been proposed to test the homogeneity of intraclass correlations in the past few decades. The big concern for them is that these methods are seriously biased when sample sizes are not large. In this thesis, data driven approaches are proposed to testing the homogeneity of intraclass correlation coefficients of several populations. Through simulation study, data driven methods have been proved to be less biased and accurate than some commonly u

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Caprio, Joseph M., Harold C. Fritts, Richard L. Holmes, David M. Meko, and Deborah L. Hemming. "A Chi-Square Test for the Association and Timing of Tree Ring-Daily Weather Relationships: A New Technique for Dendroclimatology." Tree-Ring Society, 2003. http://hdl.handle.net/10150/262549.

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This study introduces a new analytical procedure based on the chi-square (x²) statistic to evaluate tree- ring weather relationships. An iterative x² method, developed previously for relating annual crop production to daily values of meteorological measurements, is applied to tree-ring data and compared to results obtained from correlation and bootstrapped response function analyses. All three analytical procedures use a southern Arizona chronology (Pinus arizonica Engelm.) and the latter two use monthly average meteorological data. The x² analysis revealed most of the relationships exhibited

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Li, Rong. "A Tree-based Framework for Difference Summarization." Kent State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=kent1334277940.

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Gayle, Suelen S. "A simulation study of the size and power of Cochran’s Q versus the standard Chi-square test for testing the equality of correlated proportions." Kansas State University, 2010. http://hdl.handle.net/2097/3881.

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Master of Science<br>Department of Statistics<br>Paul I. Nelson<br>The standard Chi-square test for the equality of proportions of positive responses to c specified binary questions is valid when the observed responses arise from independent random samples of units. When the responses to all c questions are recorded on the same unit, a situation called correlated proportions, the assumptions under which this test is derived are no longer valid. Under the additional assumption of compound symmetry, the Cochran-Q test is a valid test for the equality of proportions of positive responses. Th

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ERIC, AIDOO, and ZHENG SAIJING. "HAPPINESS INDEXTHE CONSTRUCTION AND ANALYSIS." Thesis, Högskolan Dalarna, Statistik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:du-4853.

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This study aims to investigate the important indicators that contribute to happiness among Beijing residence. The residents of Beijing were taken as the target population for the survey. A questionnaire was used as the main statistical instrument to collect the data from the residents in Beijing. In so doing the investigation employs Factor analyses and chi-square analyses as the main statistical tools used for the analyses in this research. The study found that Beijing residents gained greater happiness in the family, interpersonal relationships, and health status. The analysis also shows tha

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Tran, Vuong, and Sebastian Öhgren. "Analys av kvalitet i en webbpanel : Studie av webbpanelsmedlemmarna och deras svarsmönster." Thesis, Linköpings universitet, Statistik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-95456.

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During 2012, the employer of this essay carried out a telephone survey with 18000 participants and a web panel survey with 708 participants. Those who partook in the telephone survey were given a choice to join the web panel. The purpose of this work is to study the participants of the telephone survey and see if they reflect the Swedish population with regards to several socio-demographic factors. Also, we intend to investigate if the propensity to join the web panel differs for participants of the telephone survey with regards to various socio-demographic affiliations. It is also of interest

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Huang, Hesha, Mengwei Jiang, and Fan Liu. "Water Pollution in China : study on the relationship between economic development and water pollution." Thesis, Högskolan Kristianstad, Sektionen för hälsa och samhälle, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-10861.

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Purpose/aim The purpose of the research is to analyze the relationship between water pollution (WP) and the economic development in China. We found a vicious cycle that at the same time as China’s economy has developed; the WP has become the focus of attention, and has also caused huge economic losses. Faced with this situation, this topic is really worth to study. Design/methodology/approach The research adopted a quantitative methodology for the exploration, and conducted a survey through questionnaires which were answered by different people. These respondents come from four areas in China.

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Tao, Jinxin. "Comparison Between Confidence Intervals of Multiple Linear Regression Model with or without Constraints." Digital WPI, 2017. https://digitalcommons.wpi.edu/etd-theses/404.

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Regression analysis is one of the most applied statistical techniques. The sta- tistical inference of a linear regression model with a monotone constraint had been discussed in early analysis. A natural question arises when it comes to the difference between the cases of with and without the constraint. Although the comparison be- tween confidence intervals of linear regression models with and without restriction for one predictor variable had been considered, this discussion for multiple regres- sion is required. In this thesis, I discuss the comparison of the confidence intervals between a

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Monaco, Linda Gokey. "A Comparison of Three Methods of Detecting Test Item Bias." Thesis, North Texas State University, 1985. https://digital.library.unt.edu/ark:/67531/metadc331416/.

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This study compared three methods of detecting test item bias, the chi-square approach, the transformed item difficulties approach, and the Linn-Harnish three-parameter item response approach which is the only Item Response Theory (IRT) method that can be utilized with minority samples relatively small in size. The items on two tests which measured writing and reading skills were examined for evidence of sex and ethnic bias. Eight sets of samples, four from each test, were randomly selected from the population (N=7287) of sixth, seventh, and eighth grade students enrolled in a large, urban sch

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Chen, Xinyu. "Inference in Constrained Linear Regression." Digital WPI, 2017. https://digitalcommons.wpi.edu/etd-theses/405.

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Regression analyses constitutes an important part of the statistical inference and has great applications in many areas. In some applications, we strongly believe that the regression function changes monotonically with some or all of the predictor variables in a region of interest. Deriving analyses under such constraints will be an enormous task. In this work, the restricted prediction interval for the mean of the regression function is constructed when two predictors are present. I use a modified likelihood ratio test (LRT) to construct prediction intervals.

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Zhang, Yan. "The impact of midbrain cauterize size on auditory and visual responses' distribution." unrestricted, 2009. http://etd.gsu.edu/theses/available/etd-04202009-145923/.

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Thesis (M.S.)--Georgia State University, 2009.<br>Title from file title page. Yu-Sheng Hsu, committee chair; Xu Zhang, Sarah. L. Pallas, committee members. Description based on contents viewed June 12, 2009. Includes bibliographical references (p. 37). Appendix A: SAS code: p. 38-53.

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Gayle, Suelen S. "A simulation study of the size and power of Cochran's Q versus the standard Chi-square test for testing the equality of correlated proportions." Manhattan, Kan. : Kansas State University, 2010. http://hdl.handle.net/2097/3881.

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Yan, Lu. "Risk Management Project." Digital WPI, 2012. https://digitalcommons.wpi.edu/etd-theses/648.

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In order to evaluate and manage portfolio risk, we separated this project into three sections. In the first section we constructed a portfolio with 15 different stocks and six options with different strategies. The portfolio was implemented in Interactive Brokers and rebalanced weekly through five holding periods. In the second section we modeled the loss distribution of the whole portfolio with normal and student-t distributions, we computed the Value-at-Risk and expected shortfall in detail for the portfolio loss in each holding week, and then we evaluated differences between the normal and

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Shen, Chen. "Risk Management Project." Digital WPI, 2012. https://digitalcommons.wpi.edu/etd-theses/650.

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In order to evaluate and manage portfolio risk, we separated this project into three sections. In the first section we constructed a portfolio with 15 different stocks and six options with different strategies. The portfolio was implemented in Interactive Brokers and rebalanced weekly through five holding periods. In the second section we modeled the loss distribution of the whole portfolio with normal and student-t distributions, we computed the Value-at-Risk and expected shortfall in detail for the portfolio loss in each holding week, and then we evaluated differences between the normal and

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Beirowski, Karin. "Cultural influences on attitudes toward aggression : a comparison between Spanish, Japanese and South African students." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53341.

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Thesis (MA)--University of Stellenbosch, 2003.<br>ENGLISH ABSTRACT: The primary aim of the present study was to examine whether the culture of a society influences the way in which people justify certain aggressive behaviours in certain situations. A total of 756 students from Spain, Japan and South Africa participated in completing the CAMA, a measure of justification of aggression. The results showed that there were significant differences within the countries. There were differences in the levels of acceptance of certain acts between these countries. Further fmdings also indicated tha

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Sacks, William Andrew. "Healthcare providers' experience of chronic grief in a pediatric subacute facility." CSUSB ScholarWorks, 2001. https://scholarworks.lib.csusb.edu/etd-project/2034.

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The purpose of this study was: (1) to evaluate the level of grief experienced by healthcare providers in a pediatric subacute facility, (2) to compare the levels of grief between different groups of healthcare providers (Certified Nurses' Aides, Licensed Nurses, and Respiratory Care Practitioners), and (3) to describe the personality/demographic factors that influence a healthcare provider's ability to cope effectively with compound grief.

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Lynch, O'Neil. "Mixture distributions with application to microarray data analysis." Scholar Commons, 2009. http://scholarcommons.usf.edu/etd/2075.

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The main goal in analyzing microarray data is to determine the genes that are differentially expressed across two types of tissue samples or samples obtained under two experimental conditions. In this dissertation we proposed two methods to determine differentially expressed genes. For the penalized normal mixture model (PMMM) to determine genes that are differentially expressed, we penalized both the variance and the mixing proportion parameters simultaneously. The variance parameter was penalized so that the log-likelihood will be bounded, while the mixing proportion parameter was penalized

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Röjdén, Thyberg Sandra, and Mélica Gabrielsson. "ASI-Intervjun : en explorativ studie av samband och grupperingar." Thesis, Linköpings universitet, Statistik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-69740.

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Med en explorativ ansats syftar denna studie till att kartlägga samband och jämföra grupperingar bland klienter som fått genomföra en ASI-intervju hos Kriminalvården. Studien bygger på 2 317 intervjuer med fokus på missbruksproblematik, gjorda under perioden 2008-2010. Vi illustrerar grafiskt intressanta samband och tittar även på hur klienternas hjälpbehov varierar inom olika livsområden. Ytterligare en aspekt av studien är att utvärdera datamaterialets kvalitet samt att studera eventuellt bortfall för de olika variablerna. Materialet är av relativt god kvalitet och förekomst av respondenters

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Boulet, John R. "A Monte Carlo comparison of the Type I error rates of the likelihood ratio chi-square test statistic and Hotelling's two-sample T2 on testing the differences between group means." Thesis, University of Ottawa (Canada), 1990. http://hdl.handle.net/10393/5708.

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The present paper demonstrates how Structural Equation Modelling (SEM) can be used to formulate a test of the difference in means between groups on a number of dependent variables. A Monte Carlo study compared the Type I error rates of the Likelihood Ratio (LR) Chi-square ($\chi\sp2$) statistic (SEM test criterion) and Hotelling's two-sample T$\sp2$ statistic (MANOVA test criterion) in detecting differences in means between two independent samples. Seventy-two conditions pertaining to average sample size ((n$\sb1$ + n$\sb2$)/2), extent of inequality of sample sizes (n$\sb1$:n$\sb2$), number of

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Belen, Rahime. "Detecting Disguised Missing Data." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610411/index.pdf.

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In some applications, explicit codes are provided for missing data such as NA (not available) however many applications do not provide such explicit codes and valid or invalid data codes are recorded as legitimate data values. Such missing values are known as disguised missing data. Disguised missing data may affect the quality of data analysis negatively, for example the results of discovered association rules in KDD-Cup-98 data sets have clearly shown the need of applying data quality management prior to analysis. In this thesis, to tackle the problem of disguised missing data, we analyzed e

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Price, Emily A. "Item Discrimination, Model-Data Fit, and Type I Error Rates in DIF Detection using Lord's χ², the Likelihood Ratio Test, and the Mantel-Haenszel Procedure". Ohio University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1395842816.

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Sheen, Peter Bernard. "Managing Intellectual Property and Licensing: A Study on Cooperative Research Centres." Thesis, Queensland University of Technology, 2005. https://eprints.qut.edu.au/16010/1/Peter_Sheen_Thesis.pdf.

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This thesis examines the perceived importance by two-tiered management of Cooperative Research Centres (CRCs) for managing a range of intellectual property issues. Fifty survey items are presented to the executive directors and commercialization managers of 62 CRCs. The survey items are categorized under four themes: relationships with collaborators, project management; design and implementation of agreements; and specific licensing issues. An analysis of the data, using a series of independent samples t-tests, repeated measures t-tests, chi-square tests for independence or relatedness and go

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Sheen, Peter Bernard. "Managing Intellectual Property and Licensing: A Study on Cooperative Research Centres." Queensland University of Technology, 2005. http://eprints.qut.edu.au/16010/.

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This thesis examines the perceived importance by two-tiered management of Cooperative Research Centres (CRCs) for managing a range of intellectual property issues. Fifty survey items are presented to the executive directors and commercialization managers of 62 CRCs. The survey items are categorized under four themes: relationships with collaborators, project management; design and implementation of agreements; and specific licensing issues. An analysis of the data, using a series of independent samples t-tests, repeated measures t-tests, chi-square tests for independence or relatedness and go

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Bolesworth, Karen, and Susan Tufts. "Social welfare policy and the crisis of hunger." CSUSB ScholarWorks, 2001. https://scholarworks.lib.csusb.edu/etd-project/1891.

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The Personal Responsibility and Work Opportunity Reconciliation Act of 1996 has lead to reduced welfare assistance to the needy. This thesis analyzes how families have become increasingly homeless and hungry during the welfare reform years.

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'Malebese, Mot'selisi Lilian. "The relationship between parental support and self-regulated learning behavior of Grade 12 learners in Lejweleputswa." Thesis, [Bloemfontein?] : Central University of Technology, Free State, 2013. http://hdl.handle.net/11462/183.

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Thesis (M. Education) -- Central University of Technology, Free State, 2013<br>The purpose of the study was to investigate the relationship between parental support and self-regulated learning behaviour of grade 12 learners. The study investigated support given to self-regulated learning of grade 12 learners. It gathered both quantitative and qualitative data. The researcher adopted the QUAN-qual model, which is also known as explanatory design. In this model quantitative data are collected first and are more heavily weighted than qualitative data. The quantitative method investigated the r

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Ščerbakov, Jaroslav. "Statistinių hipotezių taikymas mokomųjų kompiuterių priemonių naudojimo matematikos pamokose analizei." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050622_131057-36373.

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The research is dealing with the problem of choosing right statistical criteria in order to analyze the concrete educological research information and to interpret the received results. The practical value of the research’s results could be described as: 1- the exact evaluation of the real situation, by researching the effectiveness of use of educational computer means at the lessons of mathematics, with the help of hypothesises; 2- the statistical criteria received at the time of the research can be used at the concrete future researches.

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Kegel, Anja. "Venture Performance and Motivation of Business Foundation - An empirical Study in the Free-state Saxony." Master's thesis, Hochschule für Technik und Wirtschaft Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:520-qucosa-159826.

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Die Zielstellung der Arbeit besteht darin zu untersuchen, in welchem Umfang Motivation und Opferbereitschaft eines Unternehmers auf die Leistungskraft des Unternehmens wirken, und inwieweit demographische Faktoren wie Geschlecht und Alter die persönlichen Ansichten des Unternehmers, dessen Motivation, dessen Opferbereitschaft und die Start-up-Hürden beeinflussen. Im Weiteren geht es darum, die Bedeutung des Unternehmertums für die Wirtschaft zu analysieren, vor allem in den fünf neuen Bundesländern und insbesondere in Sachsen. Untersuchungsergebnisse in Bezug auf Persönlichkeitsmerkmale des Un

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Joly, Jean-Luc. "Contributions à la génération aléatoire pour des classes d'automates finis." Thesis, Besançon, 2016. http://www.theses.fr/2016BESA2012/document.

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Le concept d’automate, central en théorie des langages, est l’outil d’appréhension naturel et efficace de nombreux problèmes concrets. L’usage intensif des automates finis dans un cadre algorithmique s ’illustre par de nombreux travaux de recherche. La correction et l’ évaluation sont les deux questions fondamentales de l’algorithmique. Une méthode classique d’ évaluation s’appuie sur la génération aléatoire contrôlée d’instances d’entrée. Les travaux d´écrits dans cette thèse s’inscrivent dans ce cadre et plus particulièrement dans le domaine de la génération aléatoire uniforme d’automates fi

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Lemonte, Artur Jose. "Estatística gradiente e refinamento de métodos assintóticos no modelo de regressão Birnbaum-Saunders." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/45/45133/tde-26102010-123617/.

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Rieck & Nedelman (1991) propuseram um modelo de regressão log-linear tendo como base a distribuição Birnbaum-Saunders (Birnbaum & Saunders, 1969a). O modelo proposto pelos autores vem sendo bastante explorado e tem se mostrado uma ótima alternativa a outros modelos propostos na literatura, como por exemplo, os modelos de regressão Weibull, gama e lognormal. No entanto, até o presente momento, não existe nenhum estudo tratando de refinamentos para as estatísticas da razão de verossimilhanças e escore nesta classe de modelos de regressão. Assim, um dos objetivos desta tese é obter um fator de

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Alves, Ricardo Cavalcanti. "Análise empírica sobre a gestão e a avaliação de marcas em empresas brasileiras." Universidade Presbiteriana Mackenzie, 2012. http://tede.mackenzie.br/jspui/handle/tede/894.

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Made available in DSpace on 2016-03-15T19:32:34Z (GMT). No. of bitstreams: 1 Ricardo Cavalcanti Alves.pdf: 1472492 bytes, checksum: 191a6c7b13b5d0386ac7e4edda2748c7 (MD5) Previous issue date: 2012-03-26<br>Fundo Mackenzie de Pesquisa<br>In the last decades the world has seen great dissemination of powerful brands, local and world-known, not infrequently assessed in billions of dollars, leading to massive sales of products and services associated with them. And in that context it is clear the impact of the intrinsic value of the intangible assets brand of companies in mergers and acquisitio

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Serrano, Sara Coelho. "Analysis of the reinsurance treaty for a workers? Compensation portfolio." Master's thesis, Instituto Superior de Economia e Gestão, 2015. http://hdl.handle.net/10400.5/8995.

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Mestrado em Ciências Actuariais<br>Este relatório assenta numa análise à sustentabilidade do ramo de Acidentes de Trabalho no contexto do estágio realizado na Allianz Portugal. Inicialmente é explicado o contexto legal do ramo de forma a compreender-se melhor as características específicas deste. Por conseguinte serão detalhados os modelos e pressupostos, utilizados pela Companhia, no cálculo das provisões técnicas de Acidentes de Trabalho. O foco principal será na análise ao tratado de resseguro de Excedente de danos que cobre os custos com sinistros de Acidentes de Trabalho e o seu impacto

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Saaidia, Noureddine. "Sur les familles des lois de fonction de hasard unimodale : applications en fiabilité et analyse de survie." Thesis, Bordeaux 1, 2013. http://www.theses.fr/2013BOR14794/document.

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En fiabilité et en analyse de survie, les distributions qui ont une fonction de hasard unimodale ne sont pas nombreuses, qu'on peut citer: Gaussienne inverse ,log-normale, log-logistique, de Birnbaum-Saunders, de Weibull exponentielle et de Weibullgénéralisée. Dans cette thèse, nous développons les tests modifiés du Chi-deux pour ces distributions tout en comparant la distribution Gaussienne inverse avec les autres. Ensuite nousconstruisons le modèle AFT basé sur la distribution Gaussienne inverse et les systèmes redondants basés sur les distributions de fonction de hasard unimodale<br>In reli

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Pulido, Herrera Edith. "Improving Data Fusion in User Positioning Systems." Doctoral thesis, Universitat Jaume I, 2009. http://hdl.handle.net/10803/10485.

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A fault detection and correction methodology for user positioning systems based on Kalman filtering is presented in this thesis. To develop this methodology, various aspects of the design of positioning systems are taken into account, such as the dynamic models of the systems, the definition of the estimation technique, the available technology and the environment (to identify disturbances that can affect the systems).<br/>In the first phase, the available technologies were identified, and the algorithms and the physical-mathematical models were defined for the positioning systems for both ind

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Brace, Jordan. "Type I error rates and power of robust chi-square difference tests in investigations of measurement invariance." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/54538.

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A Monte Carlo simulation study was conducted to investigate Type I error rates and power of several corrections for non-normality to the normal theory chi-square difference test in the context of evaluating measurement invariance via Structural Equation Modeling (SEM). Studied statistics include: 1) the uncorrected difference test, DML, 2) Satorra’s (2000) original computationally intensive correction, DS0, 3) Satorra and Bentler’s (2001) simplified correction, DSB1, 4) Satorra and Bentler’s (2010) strictly positive correction, DSB10, and 5) a hybrid procedure, DSBH (Asparouhov & Muthén, 2010)

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Matějíček, Jaroslav. "Generátory náhodných čísel pro kryptografii." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2012. http://www.nusl.cz/ntk/nusl-236519.

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The content of this thesis is the design and statistical tests of two di erent hardware random number generators. It also includes an overview of the sources of entropy, algorithms used to correct deviations from the normal distribution and the description of statistical tests.

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Chuang, Jenny. "Investigation of Type I error rates of three versions of robust chi-square difference tests in structural equation modeling." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/44856.

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A Monte Carlo simulation was conducted to investigate the Type I error rates of several versions of chi-square difference tests for nonnormal data in confirmatory factor analysis (CFA) models. The studied statistics include: 1) the original uncorrected difference test, D, obtained by taking the difference of the ML chi-squares for the respective models; 2) the original robust difference test, DR₁, due to Satorra and Bentler (2001); 3) the recent modification to this test, DR₂, which ensures that the statistic remains positive (Satorra & Bentler, 2010); and 4) a hybrid statistic, DH, proposed b

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Wolniczak, Isabella, José A. Cáceres-DelAguila, Jorge L. Maguiña, and Antonio Bernabe-Ortiz. "Fruits and vegetables consumption and depressive symptoms: A population-based study in Peru." Public Library of Science, 2017. http://hdl.handle.net/10757/622277.

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Objectives: Among different factors, diet patterns seem to be related to depression. The aim of this study was to evaluate the association between the consumption of fruits and/or vegetables and depressive symptoms. Methodology/Principal findings: A secondary data analysis was conducted using information from a population-based survey from 25 regions from Peru. The outcome was the presence of depressive symptoms according to the Patient Health Questionnaire (cutoff 15 to define major depressive syndrome); whereas the exposure was the self-reported consumption of fruits and/or vegetables (in te

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Mbabu, Loyd G. "A CONTENT ANALYSIS OF INFORMATION LITERACY COURSES IN MASTER’S DEGREE PROGRAMS OF LIBRARY AND INFORMATION STUDIES." Ohio University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1178045906.

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Cavassin, Rebecca Tarasiuk Borba. "Monitoramento da satisfação de clientes em empreendimentos imobiliários." Universidade Tecnológica Federal do Paraná, 2014. http://repositorio.utfpr.edu.br/jspui/handle/1/1199.

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A tendência à implantação e certificação de Sistemas de Gestão da Qualidade (SGQ) tem sido estudada pelo mundo, pois há diversos autores que citam como uma das maiores influências para a implantação desse sistema a melhora do relacionamento com o cliente. Porém, apesar da crença na relação entre a qualidade, satisfação do cliente e retorno econômico, é preciso uma melhor compreensão nesta área. Este trabalho tem por objetivo avaliar a relação entre a implantação de SGQ e a satisfação dos clientes de empreendimentos imobiliários novos na cidade de Curitiba. Para a obtenção de dados, a fim de su

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Barret, Beverley, and n/a. "Users and an online catalogue : an evaluation of the OPAC at the Dixson Library, University of New England." University of Canberra. Information, Language & Culture Studies, 1989. http://erl.canberra.edu.au./public/adt-AUC20060607.162838.

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This thesis reports on a study undertaken at the Dixson Library, University of New England. The purpose of the study was to develop an understanding of users of online public access catalogues (OPACs). The understanding gained from the study will assist in the development of improvements to the Library's OPAC, and increase user ability to access information from the OPAC. The study replicated the user questionnaire of the Online Patron Access Project, sponsored by the Council on Library Resources (CLR) in 1981/83. The questionnaire was modified slightly to suit conditions at the Dixson Library

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Munasinghe, Wijith Prasantha. "Cluster-based lack of fit tests for nonlinear regression models." Diss., Manhattan, Kan. : Kansas State University, 2010. http://hdl.handle.net/2097/2366.

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