Abstract
This article presents results from a meta-analysis of findings on the effects of accelerated instruction on elementary and secondary school students. The data for the meta-analysis came from 26 controlled studies. The analysis showed that examination performance of accelerates surpassed by nearly one grade level the performance of nonaccelerates of equivalent age and intelligence. Examination scores of accelerates were equivalent to those of same-grade but older, talented nonaccelerates. Nonintellective outcomes were investigated relatively infrequently in the 26 studies and were not consistent from study to study.
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