A component selection measure developed by Hale and Morgan (1971) was used to determine children's tendency to exercise selective attention. This tendency was assessed at six different levels of training, ranging from undertraining to overtraining, and was examined at each of three ages--4 (N=116), 8 (N=216), and 12 (N=104). In the learning phase,…

How strategies affect learning of categories that lack necessary and sufficient attributes is explored. The authors propose that strategy variations induced by instructions affect only the amount of information represented about attributes, not processes operating on representations. An experiment required subjects to classify schematic faces into…

This experimental study has three aims: (1) to give a detailed description of imitative behavior as it develops during the first six months of life; (2) to compare imitative responses perceived through visual, kinesthetic and auditory modalities; and (3) to describe and explain the regulating mechanisms and processes present in the early…