Arefe Eskandari; Mostafa Naeimi; Ali Fathi Ashtiani; Hojjatollah Farahani
Abstract
Objective: The aim of this study was to prepare the Persian version of the orthorexia nervosa Scale and evaluate its psychometric properties. Method: The sample of the present study consisted of 639 people aged 18 to 65 years living in Tehran who were tested using the available sampling method. The Persian ...
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Objective: The aim of this study was to prepare the Persian version of the orthorexia nervosa Scale and evaluate its psychometric properties. Method: The sample of the present study consisted of 639 people aged 18 to 65 years living in Tehran who were tested using the available sampling method. The Persian version of the orthorexia nervosa Scale was prepared after the translation-retranslation process and was administered along with the eating attitude test (EAT-26) and Reef psychological well-being questionnaire (REEF-18). The validity of the scale was assessed using construct, convergent and divergent validity was evaluated through Pearson correlation. Moreover, to assess its reliability, Cronbach's alpha calculation method and composite reliability were used. Findings: The results of exploratory factor analysis indicated the existence of three factors: cognitive, emotional and clinical, and the results of confirmatory factor analysis indicated the goodness of fit and eligibility of the obtained model. Significant correlations between the obtained factors with the eating attitude test and Reef psychological well-being questionnaire also confirmed the convergent and divergent validity of the orthorexia nervosa scale. The reliability of the scale was calculated using Cronbach's alpha coefficient and obtained 0.811 for the all scales and ranged 0.69 to 0.735 for specific scales. Moreover, the composite reliability of the scales ranged between 0.78 and 0.82. Conclusion: Conclusions: In general, it can be said that the Persian version of the orthorexia nervosa Scale has a three-factor structure and has the adequate validity and reliability for use in psychological research in the Iranian sample.
Ali Moghada Zadeh; Rasoul Hemayattalab; Amir hosein Mehrsafar
Volume 5, Issue 20 , January 2017, , Pages 68-87
Abstract
Purpose: The Sport Anxiety Scale-2 (SAS-2) is a tool by which we can measure the level of trait competitive anxiety. The original form included 15 questions and three subscales included: Somatic, Worry, and concentration distraction. The aim of this study was to examine of validity and reliability of ...
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Purpose: The Sport Anxiety Scale-2 (SAS-2) is a tool by which we can measure the level of trait competitive anxiety. The original form included 15 questions and three subscales included: Somatic, Worry, and concentration distraction. The aim of this study was to examine of validity and reliability of Persian version of sport anxiety scale-2 in children and teenager athletes. Methodology: 358 questionnaires were completed by 9-16 years-old athletes (%49.5 boy and %50.5 girl) who took part in different fields. Construct validity were used to estimate four competing models. Confirmatory factor analyses (CFA) were conducted to assess the proposed models. The scale reliability was calculated by using of the Choronbach's alpha method. Also, to examine temporal reliability, test–retest method was used. Result: The result showed that Persian version of sport anxiety scale-2 provided support structure of original form and validity and reliability were confirmed. Conclusion: Persian version of sport anxiety scale-2 can be recommended to measure athlete trait competitive anxiety according to different ages
A
M Agahheris; E Mousavi; M Janbozorgi; Z barghi Irani
Volume 2, Issue 5 , June 2013, , Pages 34-47
Abstract
Introduction:The reliability and validity of exercise self- efficacy scale (ESS) and its relationship to weight efficacy lifestyle and body mass index among overweight and obese individuals was investigated in this study.Method: Using convenient sampling method, 343 participants with BMI≥25 eligible ...
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Introduction:The reliability and validity of exercise self- efficacy scale (ESS) and its relationship to weight efficacy lifestyle and body mass index among overweight and obese individuals was investigated in this study.Method: Using convenient sampling method, 343 participants with BMI≥25 eligible toexclude- include criteria were selected among students in Payam Noor university of Semnan province. All of them completed the items of exercise self- efficacy, and weight efficacy lifestyle questionnaires, and their anthropometric indices were measured, too. Results: Applying 16th version of SPSS internal revealed that that internal coefficient with alpha's Cronbach for exercise self- efficacy was 0.93. Calculating correlation coefficients to WEL, and body mass index were significant (p
