The purpose of this research paper is to find a correlation between peer, genetic, and environmental influences and the behavior and personality development during childhood. This study focuses on the 1999 Columbine High School Massacre to try to explain certain kinds of behavior. The study made on 275 freshmen at Cornell University showed that…

In this commentary I make three points. First, the four articles presented in this special issue are critical examples of the viability and importance of the idea of childhood personality. Second, I identify several concerns, including the narrow scope of the study of childhood personality, the lack of focus on environmental factors that might…

We conceptualize personality and individual variation from the perspective of dynamical systems. People's thoughts, feelings, and predispositions for action are inherently dynamic, displaying constant change due to internal mechanisms and external forces, but over time the flow of thought and action converges on a narrow range of states--a…

The purpose of this article is to provide a background of material for those school personnel who are seeking additional information in understanding the development of the self-concept.... (Author)

Investigated long-term effects of infant temperament on problem behavior and cognitive abilities at age 5 years, taking into account interactions between infant temperament and biological and social risk. Found that when high scores on temperamental factors are combined with social or biological risk, the level of later behavioral problems is…