Findings of this experiment demonstrate the interdependence of reasoning and action in the development of morality. (Authors)

Study is an initial effort at determining the sequence and developmental level at which children first use a variety of situational variables in making decisions concerning the appropriateness of various types of aggressive responses. (Authors)

This case study describes a selective mute Mexican American boy, who, at initial referral, had never spoken to peers or teachers at school. Treatment procedures employed shaping and reinforcement of speech in therapy sessions. Sessions involved the psychologist alone, the classroom teacher and psychologist, the boy's best friend and the…