Fifteen children from each of three kindergarten classes were randomly chosen to participate in this study and were randomly assigned to one of three treatment groups: (1) a group that received a perceptual training program; (2) a group that received augmented attention but no program; and (3) a control group that received no special program nor…

This study involved fifty-eight 3-year-olds. It sought to determine whether the preschoolers could learn to discriminate visually the critical elements of shape through a program of perceptual-motor training, transfer such knowledge to similar but different shapes, and then resist the process of forgetting the critical elements. The children were…