The current study examined whether relationships also influence personality trait development during middle and older adulthood, focusing on the individual's perception of support from the relationship partner. Using data from the Health and Retirement Study (n = 20,422; mean age = 65.9 years), we examined the longitudinal relationships between…

Theories of positive youth development (PYD) regard such development as bases of both community contributions and lessened likelihood of risk/problem behaviors. Using data from the 4-H Study of PYD, we tested these expectations by examining if PYD in Grade 5 predicted both youth contributions and risk behaviors and depression in Grade 6. Results…

Substance use and possible factors affecting substance use were assessed for adolescents at 12, 15, and 18 years of age. At ages 15 and 18, higher levels of use were predicted by higher levels of previous use, greater ease of making friends, higher substance use among siblings, and decreases in perceived parental warmth. (BC)