Four- and five-year-old children (n=24) were put into two groups and trained to discriminate between two displays which could only be differentiated by a single distinctive feature located on one of the displays. Subjects trained with the distinctive feature located on the positive display learned the simultaneous discrimination while feature…

Discrimination learning studied in 3-year-olds, indicated that children over 30 months of age did better than younger children, and girls learned faster than boys after the first problem. (ST)

Investigated were the effects of varying instructional explicitness (minimal, general, and explicit) and types of reinforcement (none, extrinsic, and intrinsic or relational) on the learning of an oddity discrimination task by 48 nursery school children. Ss were randomly assigned to six groups where general or minimal instructional explicitness…

Seventeen preschool children were administered two color-discrimination pretests, verbal and nonverbal. The five children who scored lowest were chosen to recieve the color program. Four scored elow 85 percent on the nonverbal pretest, whereas the other 12 children scored above 85 percent. On the verbal pretest, all five experimental subjects…

One hundred twenty-eight preschool boys were subjects in a 4x2x2 factorial design to investigate the change in reinforcer efficacy as a function of prior stimulus exposure. The factors were: (1) amount of repetition, 5, 25, 45, or 65; (2) reinforcer, good or bell; and (3) satiator, good or bell. Two additional groups were run as control groups to…