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Mohamadzadeh M, Sheikh M, Hoomanian D, Bagherzadeh F, Kazemnejad A. (2021). Evaluation of psychometric properties of perceived physical literacy instrument (ppli) in iranian adolescents. Journal of Psychological Science. 20(102), 861-868.
URL: http://psychologicalscience.ir/article-1-956-en.html

Background: Physical literacy has been widely considered by researchers in recent years, but there are limited tools for measuring it, and have not been reported a reliable tools for measuring physical literacy in Iran yet. Aims: This study was done to investigate the psychometric properties of Sam (2016) Perceived Physical Literacy Instrument (PPLI). Method: The method of this research was descriptive and the study population were high school students in Tehran in 2019-2020 who were selected through multi-stage cluster sampling from different parts of Tehran. The sample size of the study was 836 adolescents aged 12-18 years. The translation process of the questionnaire was done forward-backward, then the content validity of the questionnaire was performed using the opinions of 10 sports science experts. After distributing the questionnaire in the data sample, it was tested in the assumed three-factor model of Sam (2016). Also, to assess the reliability of the instrument, the questionnaire was re-assessed in 30 subjects after 11 days. Data were analyzed using confirmatory factor analysis test, Cronbach's alpha and Pearson correlation coefficients. Results: The results of confirmatory factor analysis showed that CFI, NFI, GFI, IFI (> 0/9), PCFI, PNFI (> 0/8) and AGFI (> 0/5) indices has optimal fit of the model and the three-factor model was approved. Also, the instrument had good internal consistency and reliability of test-retest in the factors and scale (> 0/7). Conclusions: The results of this study showed that the Persian PPLI has good validity and reliability and can be used to assess the perceived physical literacy of adolescents.