The results show that selective attention to color or form can be experimentally changed and is not developmentally determined for all Ss. (WY)

Examined reversal of emergent simple discriminations through stimulus contiguity. In experiment one, Baseline and Reversal phases were positive for most children. Experiments two through four examined protocol aspects that possibly contributed to successful reversal of the form discrimination; found that reversed discrimination usually was a…

The prediction was confirmed that young children would experience more difficulty in learning to discriminate faces of another race than those of their own. Additional findings revealed that discrimination-learning performance with racial stimuli is related to a number of factors including developmental level, race of the subject, and race of the…

An experiment tested for the Moss Harlow Effect in 3- and 5-year-olds with stimulus novelty equated. Experimental groups familiarized themselves with each pair of test objects by sorting them, then received a P or N information trial and test trials. (JH)

"Relations among preschool children's preference for color and form attributes speed of learning an initial problem, and optional shift behavior in discrimination training, were examined in this study supported by the National Institutes of Health. (Author)