Little is known about how adolescents' peer relations might alter whether sport participation is associated with alcohol use. Consistent with social learning theory, we found that sport participation was protective against alcohol use if these peers had low alcohol use, but athletes were likely to use alcohol if their sport friends and…

Although organized activities (OAs) have been established as important contexts of development, limited work has examined the role of OAs across the high school transition in buffering adolescents' social adjustment by providing opportunities for visibility and peer affiliation. The transition to high school is characterized by numerous…

This study examined why female adolescents choose to opt out of the math pipeline during high school more often than males, which has implications for their long-term careers. (Contains 3 figures.)

This chapter addresses how critical choices in the math and science pipeline can be traced back to adolescents' self-concepts of abilities and values at the beginning of high school. (Contains 3 figures.)

We present our recent research on children's learning goals and personal agency in the domain of learning in order to show the complexity of selves in Chinese culture. Our research poses challenges to the widely claimed collectivist self-concept in Chinese children and calls for reexamination of selves in specific domains across cultures.…