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Payne, V. Gregory – 1981
A study was designed to determine the effects of various ball sizes on children's catching ability and to examine the results as a between- and within-group factor. It was believed that the use of the two-test design would help to establish the validity of past and future tests of this nature. The between-subjects design group consisted of 48…
Descriptors: Difficulty Level, Elementary Education, Grade 1, Manipulative Materials