@MatthewAKraft This study tried to give a percentile ranking: https://t.co/lkIJR0OC4B by using data from this paper: https://t.co/YZVatApIHe
4/6 The magnitude of declines in children’s externalizing and dysregulated behaviors were particularly large (~.2 SD), but on par with those that universal prevention and social and emotional learning programs can likely address: https://t.co/iUu8xihFlM
@BrianNosek @siminevazire @JoeHilgard ICYI, there are a few examples from intervention research looking at the distribution of effect sizes in a given subject area to establish empirically-based benchmarks for “small/medium/large” effects: https://t.co/FW
Some context for negative impact of @AfA_Education. A meta-analysis (https://t.co/ZBgKx7XnHA) recently reported distribution of effect sizes for universal school interventions. For academic outcomes, our trial places AfA around the 1st percentile.