Bronfenbrenner's (1979) ecological model proposes that events in higher order social ecosystems should influence human development through their impact on events in lower order social ecosystems. This proposition was tested with respect to ecological violence and the development of children's aggression via analyses of 3 waves of data (1 wave…

The authors examined internal representations of conditional strategies for a situation of object conflict in 849 adolescents and young adults between the ages of 11 and 19 years. To examine participants' expectations of strategy use, the authors developed questionnaires that depicted a variety of contexts in which 2 people wanted an object that…

This paper presents a new perspective on the transition from early to middle childhood (i.e., human juvenility), investigated in an integrative evolutionary framework. Juvenility is a crucial life history stage, when social learning and interaction with peers become central developmental functions; here it is argued that the "juvenile transition"…

Fritz Redl (1902-1988) originated the life space model of therapeutic intervention with children who display angry and defiant behavior. His methods were honed by decades of direct work with highly aggressive youth. Redl observed that the same surface behavior could spring from very different underlying problems, thus requiring different…

Aggressive behaviors in children and adolescents have undergone important conceptual and definitional modifications in the past two decades. In particular, subtypes of aggression have been proposed that separate the form and the function of the aggressive behaviors (i.e., social vs. physical aggression; reactive vs. proactive aggression).…

This paper describes the processes of Monitored Play-Therapy, a method which seeks to measure the changes which may take place over a number of play therapy sessions. The laboratory is in use at Georgia State College in Atlanta and is designed for boys seven through twelve years of age. The Monitored Playroom Laboratory consists of a control booth…

The acquisition of aggressive responses may likely be a function of the environment's copious provision of imitative models. (Author)

Parts based on an MA thesis by the junior author.