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Yanjing Cao; Chenchen Xu; Shan Lu; Qi Li; Jing Xiao – Psychology in the Schools, 2025
The patient health questionnaire-9 (PHQ-9) is widely utilized in assessing individuals' depression levels. Nevertheless, research regarding its factor structure and measurement invariance remains inadequate. The aim of this study was to delve into the factor structure of the PHQ-9 and to further investigate its measurement invariance across gender…
Descriptors: Factor Structure, Error of Measurement, Factor Analysis, Age Differences
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Silverstein, A. B.; Legutki, Greg – Psychology in the Schools, 1982
Compared factor structures of the WISC and the WISC-R using the data for age groups 7.5, 10.5, and 13.5 years in the two standardization samples. Results demonstrated that the structures of the two scales are as similar as the structure of either scale is for different age groups. (Author)
Descriptors: Adolescents, Children, Comparative Analysis, Factor Structure
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Bell, John A. – Psychology in the Schools, 1977
A 60-item short form of the Mnnesota Teacher Attitude Inventory (MTAI) was compared to the present 150-item form to determine whether the same constructs were common to both sets of items. Five factors were found to be highly consistent for each group and with the results reported in the literature. (Author)
Descriptors: Attitude Measures, College Students, Comparative Analysis, Factor Analysis