Purpose: Poor sleep is associated with short-term dysregulation of mood and is a risk factor for major depressive disorder (MDD). This study examines whether objectively measured sleep in late adolescence prospectively predicts major depressive episode (MDE) onset in early adulthood as well as whether daily affect mediates this association.…

This study investigates how the interplay between adolescents' daily levels of emotional distress and diurnal cortisol relates to their risk-taking behaviors. Specifically, we test competing hypotheses whether emotional distress exacerbates the link between cortisol and risk taking, or whether cortisol only predicts risk taking in the absence of…

The purpose of this study was to gain a clearer understanding of the relation between parental relationship qualities and overall emerging adulthood (EA) marijuana use processes. The present study drew from an ethnically and socioeconomially diverse sample of EAs (ages 19-22) and their parents (n = 470) from the Pacific Northwest region. This…

The present study examined the relations between two aspects of peer experiences in preschool classrooms and children's math and literacy development during kindergarten transition. Based on the theoretical framework of classroom ecology model, peer experiences were represented by classroom social network and teachers' grouping preferences. The…

This study investigates how adolescents' daily prosocial behaviors to friends are related to diurnal cortisol using between- and within- subject analyses. Further, we examine whether role fulfillment (i.e., feeling like a good friend) moderates links between prosocial behaviors and cortisol. Ethnically diverse adolescents (N = 370; ages 11-18)…

This study investigated the relative importance of three subdomains of early number competence (number, number relations, and number operations) in predicting later mathematics achievement in cross-sequential samples of pre-K, kindergarten (K), and first graders (N=150 at each grade). OLS-regression analyses showed that each subdomain predicted…

Results from a genome-wide association study (GWAS) can be used to generate a polygenic score (PGS), an individual-level measure summarizing identified genetic influence on a trait dispersed across the genome. For complex, behavioral traits, the association between an individual's PGS and their phenotype may contain bias (from geographic,…

Observed genetic associations with educational attainment may be due to direct or indirect genetic influences. Recent work highlights "genetic nurture," the potential effect of parents' genetics on their child's educational outcomes via rearing environments. To date, few mediating childhood environments have been tested. We used a large…

Given the dramatic risks and rewards to different graduate pathways, it is imperative to understand disparities in access to the highest levels of education. This paper responds to a tension between the traditional understanding that parents' education ceases to influence children's educational trajectories after college and the more recent…

People frequently encounter numeric information in medical and health contexts. In this paper, we investigated the math factors that are associated with decision-making accuracy in health and non-health contexts. This is an important endeavor given that there is relatively little cross-talk between math cognition researchers and those studying…

It is unknown whether sluggish cognitive tempo (SCT) is prospectively associated with depression in adolescence, and possible processes linking SCT to depression remain unexamined. Using a longitudinal study with three timepoints over a two-year period, the current study tested the indirect effects of SCT on depression via peer victimization,…

The purpose of this study was to investigate the concurrent relationships between selected teacher-rated executive function (EF) and a comprehensive array of emergent literacy skills in preschool children after adjusting for targeted covariates including at-risk status. The sample comprised 114 three-year-olds who were attending Head Start…

Symptoms of attention-deficit/hyperactivity disorder (ADHD) in elementary school-age children are associated with poor relationships with classroom peers, as indicated by poor social preference, low peer support, and peer victimization. Less is known about how friendship patterns relate to ADHD symptoms, or how friendships may buffer risk for…

Parental monitoring of youth daily activities is a salient parenting strategy that has important implications for adolescents' adjustment and safety. Limited research, however, has examined positive contextual factors that can facilitate parental monitoring behaviors in Latinx families. We examined parental warmth and neighborhood social processes…

Extant work on the importance of children's executive function (EF) for academic skills typically employs either direct assessments of EF skills or adult reports of children's EF behaviors. Each approach has advantages, yet few studies have examined how different EF measurement approaches distinctly relate to child outcomes. We examined how direct…