Three experiments are reported in which the effects of oral overcorrection, used as negative reinforcer, were determined for thumb sucking and other behaviors in two 4-year-old children enrolled in a day care program for culturally disadvantaged behavior-disordered preschoolers. (GO)

Accuracy of imitation by 60 kindergarten subjects was examined using a task in which a female modeled a series of pegboard patterns and delivered accuracy contingent feedback. Four methods of feedback and a no-feedback control were compared. (GO)

Thirty-five 6- to 10-year-old children with initial low rates of donating to help a peer either received a fine for each failure to donate or also were informed of the contingency between the fine and failure to donate. (JH)

Experiment 1 examined the effect of negative attention and repeated demands on the noncompliant behavior of children. Experiment 2 studied the relative effectiveness of negative attention, isolation, ignoring, and a combination of procedures in reducing noncompliance in children. (GO)

Two studies were conducted to assess the effects of interagent, inconsistent discipline on aggression in young boys. (MP)

Middle- and lower-class children who had been treated by E in a warm or aloof manner were given a discrimination learning task under one of six conditions forming a 3 by 2 design: three reinforcement types (Verbal-intoned, Verbal-nonintoned, or Symbolic) and reinforcement for correct or incorrect responses. (Editor)