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Bailey, Drew H.; Littlefield, Andrew K. – Child Development, 2017
This study reanalyzes data presented by Ritchie, Bates, and Plomin (2015) who used a cross-lagged monozygotic twin differences design to test whether reading ability caused changes in intelligence. The authors used data from a sample of 1,890 monozygotic twin pairs tested on reading ability and intelligence at five occasions between the ages of 7…
Descriptors: Correlation, Child Development, Intelligence, Developmental Stages