Aggressive and cooperative behaviors of 70 preschool children were measured during game conditions and subsequent free-play periods. Cooperative behavior increased and aggression decreased during cooperative games and free play; conversely, competitive games were followed by increases in aggressive behavior and decreases in cooperative behavior.…

Pretreatment assessment data were used to enhance an existing treatment package to reduce aggression and to increase the positive social interactions of a 9-year-old boy with moderate mental retardation and Hunter's syndrome. Additional reinforcements and punishment components were added and resulted in positive social interactions and suppressed…

A six-year old with developmental delays who exhibited aggression when asked to pick up his toys was studied to determine the effects of interventions. Treatment included praise, a break, and access to the toys contingent on compliance. Results showed aggression decreased only with social interaction during the break. (Author/CR)