In two experiments, 4- to 9-year-olds played a game in which they selected one of two boxes to win a prize. On "regret" trials the unchosen box contained a better prize than the prize children actually won, and on "baseline" trials the other box contained a prize of the same value. Children rated their feelings about their prize before and after…

Findings are consistent with the hypothesis of an input processing deficit in autistic children. Autistic children were insensitive to differences in the structures present and tended to impose their own simple stereotyped patterns. Normal children imposed such patterns in the absence of structured input only. Paper reports work which has been…

Reports on four experiments on pattern perception in four-month-old infants. The first experiment examined preference for patterns varying in structure; the second examined encoding patterns from different subset sizes; and the last two experiments examined changes in the size, position, and orientation of the habituation pattern. (HOD)

Examines the development of reciprocal cooperation in dyads by allowing one subject at a time to be dependent upon a partner and then reversing this condition periodically. Subjects were 10 special education unit students who ranged in age from 10 to 16 years. (MP)

Investigates third- and fourth-grade children's verbal evaluations of syllables paired with different reward schedules (full, partial, or none) for "pleasantness" and "curiosity." (Author/ED)

Ten boys and 10 girls ages 29-35 months, were tested individually on a memory task requiring free recall of two-item lists. No sex differences in response were noted. The mean number of correct responses and the mean number of correct pairs were higher for related items, and, in addition, the children frequently reported the last object they saw…

This study was designed to investigate response-class phenomena and the possibility of indirect contingency control. A 3 1/2-year-old male was the subject for the study. (BD)

Analyzed effects of modeling and contingent praise on infant imitation of three responses: motor-with-toy, motor-without-toy, or vocal. Found a systematic increase in the percentages of training and probe models matched by the three 12- to 14-month-olds following introduction of model-and-praise treatment conditions. Nonmatching responses did not…