The links between endocrine physiological processes and adolescent psychological processes are the focus of this article. Presents a brief history of biopsychosocial research in adolescent development. Discusses four models for conceptualizing hormone-behavior research as illustrative of biopsychosocial models. Concludes with challenges and…

Examined key components of the "New Look" at adolescent imaginary audience and personal fable constructs. Found that only the invulnerability and omnipotence subscales of the New Personal Fable Scale were highly related. Boys were found to believe more strongly in their own uniqueness, invulnerability, and omnipotence than were girls.…

Used a bio-psychosocial approach to examine predictors of onset of sexual intercourse among adolescents interviewed at ages 13-14, 16-17, and 22-23 years. Found that for girls, always-married parents and less dating alone predicted later first intercourse. Earlier timing of first intercourse for boys was related to associating with peers with…

Relations of contraceptive behavior, problem behaviors, and health-protective behaviors were examined in an ethnically and socioeconomically diverse sample of sexually active adolescents. Findings demonstrate substantial organization among adolescent health and problem behaviors and suggest that contraceptive behavior should be conceptualized…

Examined relations between U.S., Korean, and Chinese adolescents' misconduct and their perceptions of others' behavior and attitudes toward youth misconduct. Found that U.S. youths engaged in more misconduct than other groups. Perceived behavior and sanctions of close friends were strongest predictors of misconduct in all cultures. Found unique…

Examined role of age, gender, and dating in Israeli high school students' romantic behaviors/perceptions and linkages between family/peer relationships and affective intensity with romantic partners. Found that intimacy and level of emotional involvement were similar across adolescence. Girls emphasized attachment and care more than boys.…

Used panel study of representative community sample to compare volunteer and nonvolunteer adolescents and identify effects of volunteerism on development. Found that volunteers had higher educational plans and aspirations, grade point averages, academic self-esteem, and intrinsic motivation toward school work than did nonvolunteers. Volunteerism…