Erikson (1950) contends that the physical changes associated with puberty serve as a catalyst for adolescents to question childhood identifications and to consolidate these with current self-conceptions, personal ideologies, interpersonal values, and future aspirations. Erikson describes the adolescent identity crisis as the developmental period…

It is important to account for timing of puberty when studying the adolescent brain and cognition. The use of classical methods for assessing pubertal status may not be feasible in some studies, especially in male adolescents. Using data from a sample of 478 males from a longitudinal birth cohort, we describe the calculations of three independent…

Longitudinal, mixed method research on friendships, conducted over the past two decades with Black, Latino, Asian, and European American boys, reveals three themes: (1) the importance for boys of being able to share their secrets with their close friends; (2) the importance of close friendships for boys' mental health; and (3) the loss of but…

Previous research on adolescent girls in relationships with older partners suggests a range of negative outcomes for the adolescent. Using three waves of data from the National Longitudinal Survey of Adolescent Health and a life course perspective, we explore the connection between involvement in age discordant relationships (girls dating males…

Although developmental theory predicts that adolescent romantic relationships have important benefits, empirical evidence suggests that they may also carry substantial psychosocial risk. This study uses data from 4,948 respondents (50% female) in Wave I and Wave II of the National Longitudinal Study of Adolescent Health to examine the association…

Although there are some studies documenting structural brain changes during late adolescence, there are few showing functional brain changes over this period in humans. Of special interest would be functional changes in the medial frontal cortex that reflect response monitoring. In order to examine such age-related differences, the authors…

Although many factors may influence the initiation of drug or alcohol use, the perception of risk associated with these behaviors also varies by gender, age, and type of drug. Understanding the different patterns of risk perceptions that emerge during adolescent development may help to better target health communication messages and increase the…

To describe trajectories of aggressive behaviors for adolescents living in rural areas, we compared the patterns, timing and sex differences in development of physical and social aggression using five waves of data collected from youth in school surveys administered over 2.5 years. The sample (N = 5,151) was 50.0% female, 52.1% Caucasian and 38.2%…

A model for developmental transitions in defense use in adolescence based on an integration of psychoanalytic views of adolescence and J. Loevinger's theory of ego development was tested with 31 male and 35 female adolescents. Results support some hypothesized developmental transitions and not others. Implications of findings are discussed. (SLD)

Prior research has indicated that pubertal development and peer associations are important determinants of adolescent smoking behavior. However, more remains to be learned about "why" these variables matter or how they may be related to one another in ways that lead to the initiation of smoking. Using contractual data from the National…

Boarding school adolescent boys (n=197) rated dormitory mates on each dimension of Marcia's levels of ego identity achievement (Identity Achievement, Moratorium, Foreclosure, and Diffusion) twice with interval of six months. Results indicated age differences in identity status for young adolescents, identity development associated with time, and…

Surveys the worries of adolescents in Northern Ireland, with a focus on identifying age and gender differences. Analysis reveals that females report worrying significantly more frequently than males, particularly in regard to transition from school and personal and academic issues. Students over 16 report worrying significantly less than their…

It was hypothesized that antisocial behavior and deviant peer involvement assessed prior to puberty, at grade four, would predict initiation of sexual intercourse by grade nine. The hypotheses were tested on a sample of 201 boys who were at risk for delinquency. The subjects participated in an extensive multiple method/agent assessment for both…

Examined the effect of puberty on the parent-adolescent relationship in association with ethnicity, parental psychopathology, and chronological age. Found that puberty effects on parent support and parent-adolescent conflict differ for Hispanic and non-Hispanic white boys. Parent alcoholism did not moderate the effect of puberty, and puberty…

This research monograph on the social and emotional development of gifted students' is divided into four parts. Part 1 of the report focuses on analysis of the literature. Parts 2-4 present results of seven qualitative and quantitative studies of adolescent development. In Part 2, Studies 1 and 2 expand Lazarus and Folkman's cognitive appraisal…