Abstract
"Three groups of 24 kindergarten children were given trials of training to pull a response handle freely during 3.8-sec. presentations of a colored stimulus. Two cycles of generalization test trials were then interspersed among reinforced presentations of the training stimulus." Group I had graded differences in hue. Group II differed in lightness, and Group III differed in both hue and lightness. Group III gave fewer generalized responses to its test stimuli than did Groups I or II to theirs, but only the comparison between II and III was significant. (PsycINFO Database Record (c) 2006 APA, all rights reserved)
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