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:: Volume 6, Number 2 (May & Jun 2016) ::
J Research Health 2016, 6(2): 230-237 Back to browse issues page
Validity and reliability of optimism questionnaire among adolescents based on theory of planned behavior
Alireza jafari Baghkheirati, Leila Ghahremani , Sareh keshavarzi, Mohammad Hossein Kaveh
Department of Health Education & Health Promotion, Faculty of Health, Shiraz University of Medical Sciences, Shiraz, Iran
Abstract:   (1946 Views)

Introduction: This study aimed to standardize, stabilize, and validate the optimism questionnaire based on the theory of planned behavior in the first-grade high school male adolescents. Materials and Methods: The present descriptive study was conducted on 170 male students in the first grade of high school. The study data were collected using a questionnaire. In order to determine the reliability of the questionnaire, Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA) were performed using the SPSS statistical software (version 19) and SAS 9.2. Results: High internal consistency values were obtained for all the subscales. The results of factor analysis showed that 14 significant factors had eigen values greater than one values and 71.22% of the variance was determined by these factors. In addition, using CFA based on the theory of planned behavior, four factors were considered for the 45 questions of the questionnaire which determined 39.98% of the variance. Conclusion: The results indicated that the optimism questionnaire was a valid and reliable instrument to be used among the students in the first grade of high school.

Keywords: Optimism, Adolescent, Theory of planned behavior
Full-Text [PDF 453 kb]   (370 Downloads)    
Type of Study: Orginal Article | Subject: Health system
Received: 2014/07/5 | Accepted: 2015/02/4 | Published: 2016/04/26
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jafari Baghkheirati A, Ghahremani L, keshavarzi S, Kaveh M H. Validity and reliability of optimism questionnaire among adolescents based on theory of planned behavior. J Research Health. 2016; 6 (2) :230-237
URL: http://jrh.gmu.ac.ir/article-1-801-en.html
Volume 6, Number 2 (May & Jun 2016) Back to browse issues page
Journal of Research and Health
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