In addition to the collection of data from local evaluations of each improvement strategy, evidence form the broader literature on the effects of strategies in improving the implementation of school-based physical activity program or polices was an important input. For this, we drew on a Cochrane review, including its updates, on strategies to improve the implementation of such interventions in schools[35], and other evidence reviews available at the time. This evidence ensured that decisions regarding improvements were guided by the best available evidence internationally, as well as data from our local evaluations.
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