Psychometric Methodologies and Testing

The purpose of this study is to investigate the impact of estimation techniques and sample sizes on model fit indices in structural equation models constructed according to the number of exogenous latent variables under multivariate normality. The performances of fit indices are compared by considering effects of rela…

• ŞENGÜL CANGÜR

There exist differences between the use of Exploratory and Confirmatory Factor analysis at scale adaptation or development studies. The order of factor analysis used would cause the discrepancy in the results. Besides, multiple confirmatory factor analysis would fit well on a single data set. In this study, simulated…

OBJECTIVE: Guidelines have been established for cross-cultural adaptation of outcome measures. However, invariance across cultures must also be demonstrated through analysis of Differential Item Functioning (DIF). This is tested in the context of a Turkish adaptation of the Health Assessment Questionnaire (HAQ). METHO…

• AYŞE ADİLE KÜÇÜKDEVECİ
• ŞEBNEM ATAMAN

OBJECTIVE: Guidelines have been established for cross-cultural adaptation of outcome measures. However, invariance across cultures must also be demonstrated through analysis of Differential Item Functioning (DIF). This is tested in the context of a Turkish adaptation of the Health Assessment Questionnaire (HAQ). METHO…

• AYŞE ADİLE KÜÇÜKDEVECİ
• ŞEBNEM ATAMAN

In this study, the number of factors obtained from parallel analysis, a method used for determining the number of factors in exploratory factor analysis, was compared to that of the factors obtained from eigenvalue and scree plot—two traditional methods for determining the number of factors—in terms of consistency. Pa…

• DUYGU KOÇAK

ats altnda yer alan ve uyum dzeyleri asndan farkllk gsteren yol analizi, Dorulayc Faktr Analizi (DFA) ile yapsal model iin LISREL ve AMOS programlarndan elde edilen analiz ktlarnn karlatrlmas amalanmtr. Dolaysyla, aratrmada evren ve rneklem tayinine ihtiya duyulmamtr. Aratrma; her bir modeli yanstan

Research synthesis and meta‐analysis provide a pathway to bring together findings in a given domain with greater systematicity, objectivity, and transparency than traditional reviews. The same techniques and corresponding benefits can be and have been applied to examine methodological practices in second language (L2)…

• TALİP GÖNÜLAL

Studies of international mathematics achievement such as the Trends in Mathematics and Science Study (TIMSS) have employed classical test theory and item response theory to rank individuals within a latent ability continuum. Although these approaches have provided insights into comparisons between countries, they have…

• RUKİYE DİDEM TAYLAN SAYGILI

This study investigates the effects of sample size and test length on item-parameter estimation in test development utilizing three unidimensional dichotomous models of item response theory (IRT). For this purpose, a real language test comprised of 50 items was administered to 6,288 students. Data from this test was u…

• ALPER ŞAHİN
• DUYGU ANIL

BACKGROUND: This study aims to determine the psychometric properties of the World Health Organization Well-Being Index (WHO-5) Turkish version in Turkish adults and older adults. METHODS: This is a multicenter cultural adaptation study carried out with 1752 participants. Internal consistency (by Cronbach's alpha); Con…

• BEYHAN CENGİZ ÖZYURT
• CELALETTİN ÇEVİK
• HAKAN BAYDUR

The aim of this study is to examine how the practice of different item removal strategies during exploratory factor analysis (EFA) phase of scale development change the number of factors, factor loadings, explained variance ratio, and reliability values (α and ω) explained. In the study, data obtained from 379 univers…

• MELTEM ACAR GÜVENDİR

The aim of this study is to examine how the practice of different item removal strategies during exploratory factor analysis (EFA) phase of scale development change the number of factors, factor loadings, explained variance ratio, and reliability values (α and ω) explained. In the study, data obtained from 379 univers…

• YEŞİM ÖZER ÖZKAN