VALIDITY AND RELIABILITY OF THE INTERNATIONAL PHYSICAL ACTIVITY QUESTIONNAIRE-SHORT FORM IN ADOLESCENTS

Authors

  • Dragan Djurdjevic Department of Sports Medicine, Faculty of Medicine, University of Belgrade, Serbia
  • Jovana TodoroviĆ Institute of Social Medicine, Faculty of Medicine, University of Belgrade, Serbia
  • Sandra Sipetic-Grujičić Institute of Epidemiology, Faculty of Medicine, University of Belgrade, Serbia

Keywords:

IPAQ-SF, iPhone Health App, pedometer, validation

Abstract

A very few studies examined the validity and reliability of the International Physical Activity QuestionnaireShort Form (IPAQ-SF) in the adolescent population, and no study has been conducted in Serbia. The aim of this study was to examine the validity and reliability of the IPAQ-SF in adolescents. The cross-sectional study included 101 adolescents aged 15-19 years (31.8% boys, 68.2% girls). The study instrument was a questionnaire regarding demographic characteristics, physical activity, and iPhone built-in pedometer. The data were analyzed using the interclass correlation coefficient (ICC), Spearman correlation coefficient, exploratory factor analysis (EFA) with Promax rotation, and two confirmatory factor analyses (CFA) to examine theoretical factor model and for the two-factor model based on the EFA. Total activity measured by IPAQ-SF correlated weakly but significantly with the pedometer measured steps (r=0.25, p=.045). The EFA showed two factors that explained 64.19% of the variance (46.15% and 18.05%). The CFA for the two-factor model showed acceptable fit, and for the three-factor model better fit GFI 0.951, AGFI 0.827, CFI 0.934, RMSEA 0.131 (95% CI: 0.07-0.198). Poor to moderate reliability was observed with ICC (0.360.65). Our study shows that the IPAQ-SF has a good validity and acceptable reliability in the population of adolescence, and has numerous advantages, especially in the population studies, but it requires caution in the interpretation of the results.

Key words: IPAQ-SF, physical activity, adolescents, iPhone Health App, pedometer, validity

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Published

2025-01-02

How to Cite

Djurdjevic, D., TodoroviĆ, J. ., & Sipetic-Grujičić, S. (2025). VALIDITY AND RELIABILITY OF THE INTERNATIONAL PHYSICAL ACTIVITY QUESTIONNAIRE-SHORT FORM IN ADOLESCENTS. Kinesiology, 56(2), 304–311. Retrieved from https://hrcak.srce.hr/ojs/index.php/kinesiology/article/view/30609

Issue

Vol. 56 No. 2 (2024)

Section

Articles

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