A replication of a previous longitudinal study of American children -- this time with Guatamalan children. (RY)

Results indicated that children exposed to the aggressive program engaged in longer attacks against an ostensible child victim than subjects exposed to the nonaggressive program. (Authors)

The social deprivation-satiation effect" is characterized by an inverse relation between the frequency of social reinforcement received in a standard treatment period and the effectiveness of that reinforcer in a subsequent test. (Author)

Study was conducted to determine the effect a rule had on a child who was subsequently exposed to conforming or deviant verbalizations and/or behavior displayed by a televised peer model. (Author)

Results confirmed previous findings that response speeds would be faster following an 18- than a 8-second stimulus duration. (Author)

Younger men are both less engaged from the world and more efficient processors of information than older (especially less educated) ones. (Authors)

Findings indicate that infant boys may be more easily conditioned by visual reinforcement than are girls. (Author/MB)

A study of the effect of the twin sibling relationship upon interactions between monkey mothers and infants. Findings provided strong support for the prediction that the twin sibling presence decreases the amount of behavior directed from infant to mother. Differences in maternal behavior were concluded to be reactions to differences in infant…