Showing 3 results for Factor Analysis
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Volume 12, Issue 48 (10-2013)
Abstract
Children and Adolescents Depression Scale (CADS) is a self-report scale designed for diagnosis and assessment of the level and intensity of MDD in children and adolescents. The aim of this study was to assess the psychometric and factorial structure of CADS as well as major depressive disorder (MDD) status among adolescent girls (14-19 years). 417 female adolescent students from different areas of Tehran completed the scale. Scale reliability was assessed through internal reliability (Cronbach’s alpha and half-splitting), inter-item correlation and test-retest methods and all revealed a desirable level of reliability of CADS. Factor analysis was done via two major methods: Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA). EFA via Principal Components Factor Analysis, Parallel Analysis and Minimum Average Partial (MAP) Test showed a one-factor model in the CADS, which assesses depression. Afterwards, CFA supported a one-factor model of depression. Analyses of the CADS results indicated that 32.9% of the subjects were with no signs of depression, while 67.1% of them have depressive signs and symptoms to severe MDD. According to these findings, it seems that CADS could be used as a preferable scale to assess and screen depressive signs as well as depressive disorders both in research and in clinical settings. In addition, regarding the high rate of incidence of depressive signs and symptoms among female adolescent students, the necessity of systematic cognitive-behavioral interventions is obvious.
Mis Neda Afsharian, Mr , Mr , Mr , Mr ,
Volume 20, Issue 79 (10-2021)
Abstract
Aim: The aim of present research was making a test of perception of lovemaking between single students and survey of psychometric features of this tool. Methods: The research method was mixed. For this purpose, first during a qualitative study based on data-driven theory using a semi-structured interview technique, 32 students (18 girls and 14 boys) were interviewed. The sampling method was purposeful and based on theoretical saturation. The text of the interviews were identified using MAXQDA10 qualitative data analysis software. Students' coding and perception of lovemaking were identified in three categories: ethics of logical obedience, emotional self-obsession and immoral self-obsession. In the next step, based on the codes obtained from the qualitative part of the research, a questionnaire appropriate to the cultural and educational context of Iranian society was developed to measure the perception of lovemaking of single students and then 560 single students ranging in age from 19 to 33 years. (314 girls and 246 boys) Bachelor's and Master's degrees from 5 governmental and Islamic Azad universities in Tehran (Allameh Tabatabai, Shahid Beheshti, Imam Sadegh (AS), Research Sciences and Amirkabir Universities), which are in a multi-stage cluster method Were selected and answered the test. Results: The results of confirmatory factor analysis showed that the scale of love perception contains 18 questions and includes three confirmed categories of ethics of logical obedience (questions 1, 2, 3, 4, 5, 6), emotional self-obedience (questions 13, 14, 15, 16, 17, 18) and immoral self-obsession (questions 7, 8, 9, 10, 11, 12) of lovemaking. Model fit indices in confirmatory factor analysis confirmed the validity of this scale. Conclusion: Therefore, based on the findings, the students' love perception test can be used as a valid and valid tool to measure and evaluate the love perception of single Iranian students.
Masoumeh Esmaeily, Fahimeh Shadabmehr, Kowsar Dehdast,
Volume 22, Issue 86 (5-2023)
Abstract
Aim: The present research was conducted with the purpose of designing and determining some psychometric characteristics of the Sahm-based lifestyle questionnaire, and this study was done with a practical goal. Methods: The statistical population of the research included all people aged 18 to 60 living in Tehran in 2023, of which 389 people were selected through available sampling and answered the questionnaire. In order to check the validity of the questionnaire, the method of exploratory factor analysis was used, and the content validity of the instrument was confirmed by consulting experts. In order to check the reliability of the tool, Cronbach's alpha method was used. All statistical analyzes were performed by SPSS-25 software. Findings: Based on the findings of the research, exploratory factor analysis with principal components showed that the Sahm-based lifestyle questionnaire is a 13-component tool that explains 57.24 percent of the “Sahmgozari” (partake or sharing) variance. Cronbach's alpha of the whole questionnaire is 0.93 and for components such as meaning-based (0.78), responsibility-based (0.74), agency (0.73), security-based (0.71), principle-based (0.73), respect-based (0.71), intention-based (0.73) , personal peace (0.80), the best role-playing (0.72), formative relationships (0.67), bond-making (0.63), harmonization with goals (0.63), and selectiveness (0.65) were reported. Conclusion: According to the findings, it can be concluded that the Sahm-based lifestyle questionnaire has appropriate and acceptable validity and reliability in the sample of participants in the research.
