Development and validation of the school physical activity index
ISPAH ePoster Library. Stylianou M. Oct 16, 2018; 225423; 81
Dr. Michalis Stylianou
Dr. Michalis Stylianou
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Abstract Introduction/Background: Schools have been identified as key physical activity (PA) promotion sites, and multifaceted and coordinated school PA programs have been proposed as a promising strategy to help youth meet the PA guidelines. This study’s purpose was to develop and assess the content validity and reliability of the School PA Index (SPAI), a self-assessment and planning guide for elementary schools that is based on a whole-of-school, multi-component approach to PA promotion. Methods:<\b>
This study involved four phases: (a) developing the SPAI based on relevant policies/guidelines, (b) assessing its content validity using expert feedback, (c) conducting cognitive interviews with Physical Education (PE) teachers, and (d) administering the SPAI to a sample of PE teachers two times, two weeks apart (test-retest). Data analyses included descriptive statistics for expert ratings and a review of qualitative feedback from phases (b) and (c). Analytical methods for phase (d) included percentage agreement and weighted Kappa coefficient to examine the reliability of responses to the SPAI items. Results:<\b>
In the content validity phase, experts (N=28, 21 academics, 7 PE teachers/school PA coordinators) rated the relevance and clarity of the SPAI sections and items as high (M range: 5.81 – 6.76, on a 7-point scale). Qualitative feedback from the experts and cognitive interviews with three PE teachers were used to revise the SPAI. Participant (N=19) responses in the test-retest phase demonstrated moderate to almost perfect agreement for the SPAI items. Conclusion:<\b>
The SPAI is a valid and reliable instrument for assessing PA policies and practices in elementary schools.
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