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Bergmann, Christina; Tsuji, Sho; Piccinini, Page E.; Lewis, Molly L.; Braginsky, Mika; Frank, Michael C.; Cristia, Alejandrina – Child Development, 2018
Previous work suggests that key factors for replicability, a necessary feature for theory building, include statistical power and appropriate research planning. These factors are examined by analyzing a collection of 12 standardized meta-analyses on language development between birth and 5 years. With a median effect size of Cohen's d = 0.45 and…
Descriptors: Language Acquisition, Meta Analysis, Effect Size, Child Development