Najmeh Rezasoltani; Hassan Gharayagh zandi; Mohammad Khabiri
Abstract
The aim of this study was to determine the validity and reliability of the Basic Psychological Needs in Exercise Scale (BPNES). The method was descriptive-survey. The Statistical population consisted of male and female athletes aged over 16 years who attended structured exercise programs. The ...
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The aim of this study was to determine the validity and reliability of the Basic Psychological Needs in Exercise Scale (BPNES). The method was descriptive-survey. The Statistical population consisted of male and female athletes aged over 16 years who attended structured exercise programs. The sample consisted of 256 male and female athletes (M=23.03, SD=4.04) who were selected through cluster random sampling method. The 12-item Basic Psychological Needs in Exercise Scale was initially translated (by translation - back translation method) and then its face and content validity were confirmed. After a pilot study and necessary modifications, confirmatoryfactoranalysis (CFA) was used to examine construct validity. Cronbach's alpha coefficient was used for internal consistency of the scale and temporal reliability of the items. Intra-class correlation coefficient (ICC) was examined by test-retest method with 2-4 weeks of interval for the scale and subscales. The results showed that the second model of BPNES had acceptable fit indexes (CFI=0.98, RMSEA=0.07), internal consistency (alpha coefficient: 0.87 for relatedness, 0.80 for competence, 0.82 for autonomy, and 0.88 for the whole questionnaire) and temporal reliability (0.88 for relatedness, 0.83 for competence, 0.83 for autonomy, and 0.90 for the whole questionnaire). So, this scale can be used for research population in Iran.
Hassan Kiaei; Jafar Nouri; Elaheh Shojaei
Abstract
The present study aimed at determining resources of sport self-confidence in elite bodybuilders and their relationship with body image. The subjects of study included 35 bodybuilders participating in qualifying tournaments of bodybuilding national team. A questionnaire for resources of sport self-confidence ...
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The present study aimed at determining resources of sport self-confidence in elite bodybuilders and their relationship with body image. The subjects of study included 35 bodybuilders participating in qualifying tournaments of bodybuilding national team. A questionnaire for resources of sport self-confidence and a questionnaire of physical self-description were used to collect data. Kolmogorov–Smirnov test, one-sample ttest, Pearson correlation coefficient and one-variable regression with significance level of 0.05 were used to analyze data. The findings showed that ability demonstration (Mean=6.451 ± 0.787) was the most important resource of sport self-confidence in elite bodybuilders. Moreover, the results showed that bodybuilders had a positive body image (t(16.82)=31.94, P<0.001). Regarding the correlation between resources of sport self-confidence and body image, the results showed a positive and significant relationship between all resources of sport self-confidence (except for the vicarious experiences and coaches' leadership style) and body image and the highest level of correlation belonged to ability demonstration with body image (P<0.001, r=0.5920). Furthermore, the results showed that the body image of these bodybuilderswas a predictor of their sport self-confidence (β=0.520, t=3.497, P<0.001). The results of this study support Vealey’s sport self-confidence model.
