The joint development of externalizing and internalizing behaviors in black and Hispanic youth and the link to late adolescent substance use.

There is a need to understand how the joint development of externalizing and internalizing behaviors is related to substance use, particularly among historically understudied and often disadvantaged populations. Latent class models were used to estimate patterns of externalizing behaviors and internalizing behaviors in the form of depressive and anxious symptoms from age 6 to 14 among 390 Black and Hispanic youth. Then, growth curve models of substance use between the ages of 15 and 19 were estimated as a function of joint latent class membership. Only elevated levels of externalizing behaviors were associated with higher levels of substance use through age 18. Internalizing behaviors appeared to serve as a protective factor among those with moderate displays of externalizing behavior only. Additionally, growth in substance use from ages 15 to 19 was slower among those who displayed the highest level of externalizing behaviors, and internalizing behaviors appeared to moderate growth (and serve as protective factor) among those who displayed moderate levels of externalizing behaviors. The findings underscore the importance of pattern profiles based on observations of the joint development of problem behaviors to assess risk for substance use, particularly in understudied populations where risk/protective factors may operate in a unique manner.

Maternal Depressive Symptoms and Adolescent Health Risk Problems: The Role of School Engagement.

Maternal depressive symptoms disrupt positive youth development, though the pervasiveness of this disruption is understudied. Additionally, it remains unknown whether prosocial factors such as adolescent school engagement may buffer against this risk factor. Using multigenerational, longitudinal data spanning ten years from an ethnically diverse sample of mother-child dyads (66% Black, 17% Hispanic, and 17% White), this study examines the effect of maternal depressive symptoms in late childhood (ages 8-13) on the development and progression of offspring depressive symptoms, substance use, and delinquent behavior during adolescence (ages 14-17). Further, the study examines whether school engagement moderates the ill effects of maternal depressive symptoms. Mother-son (n = 212) and mother-daughter (n = 215) dyads are compared to assess for similarities and differences between male and female offspring. The results indicate that offspring of mothers with greater maternal depressive symptoms are more likely to display higher levels of depressive symptoms, substance use, and delinquency throughout adolescence, although important nuances emerge across outcome and child sex. Additionally, while school engagement itself is associated with reduced depressive symptoms, substance use and delinquency among adolescents, it is not profound enough to offset the risk posed by maternal depressive symptoms. The findings of this study reinforce the pervasive, negative, intergenerational impact of maternal depressive symptoms and has implications for prevention and intervention efforts for adolescent health risk problems.

Intergenerational marijuana use: A life course examination of the relationship between parental trajectories of marijuana use and the onset of marijuana use by offspring.

Prior research documents intergenerational (IG) continuity in marijuana use, with most work adopting a life course perspective. Incorporating a methodology that allows for the measurement of "patterns of behavior" instead of singular aspects of parent marijuana use (e.g., age of onset or frequency at any one age or ages), we investigated the simultaneous effects of parental age of onset, frequency, and duration of marijuana use across 3 periods of the life course (i.e., adolescence, emerging adulthood, and adulthood) on the timing of first marijuana use among offspring. Using prospective data from 2 companion studies, the Rochester Youth Development Study and the Rochester Intergenerational Study, we used group-based trajectory models to estimate trajectories (or patterns) of parental marijuana use spanning ages 14 to 31 among a birth cohort of 462 parents. We then examined the relationship between parental trajectories of marijuana use and the timing of the onset of marijuana use through age 25 among firstborn offspring. Both late-onset persistent use by parents and increasing chronic use spanning adolescence to adulthood by parents were associated with an increased likelihood of onset of marijuana use among offspring. The results underscore the importance of patterns of marijuana use for IG continuity in contrast to singular measures (e.g., age of onset among parents), which can obfuscate important IG patterns of continuity. Prevention and intervention programs should consider the entire history of parent use to better identify children most at risk for the onset of marijuana use in adolescence and emerging adulthood. (PsycInfo Database Record (c) 2020 APA, all rights reserved).