This 4-year study of 698 young adolescents examined the covariates of early onset substance use from Grade 6 through Grade 9. The youth were randomly assigned to a family-centered Adolescent Transitions Program (ATP) condition. Variable-centered (zero-inflated Poisson growth model) and person-centered (latent growth mixture model) approaches were…

Sensitive and responsive caregiving is associated with better cognitive and language outcomes. Using the longitudinal data set from the National Institute for Child Health and Human Development (NICHD) Study of Early Child Care and Youth Development, this study asks how changes in the sensitivity of both mothers and caregivers from 6 months to 6…

A two-year longitudinal investigation examined adolescents' (N = 100 girls and 99 boys) perceptions of social support in relationships with mothers, close friends, and romantic partners from Grade 10 (ages 14-16) to Grade 12 (ages 16-18). Adolescents, mothers, and close friends also provided descriptions of the participants' global self-worth and…

Emotional availability (EA) is a prominent index of socioemotional adaptation in the parent-child dyad. Can basic psychometric properties of EA be looked at from both variable (scale) and person (cluster) points of view in individuals and in dyads? Is EA stable and continuous over a short period of time? This methodological study shows significant…

Researchers in the fields of cognitive and language development have made less use of large-scale longitudinal designs and of person-centered approaches to data analysis than have researchers in the fields of social and personality development. It is argued that differences among domains of developmental psychology in the research methods employed…

The goal of this study was to examine whether the security of the relationship between mothers and children influenced the relation between maternal emotional expressiveness and aspects of children's social development. Fifty-one preschool children (M age = 52.80 months) and their mothers took part in the study. At their homes, mothers completed…

The present commentary gives a brief overview of the person-oriented and variable-oriented approaches, how they are commonly used in longitudinal research, and what one should take into consideration before using either approach. In addition to presenting an empirical example on girls' adjustment problems using both approaches, this commentary…

In this three-year longitudinal study, children were asked to choose the "best" strategy for dealing with hypothetical peer provocations and to justify "why" that was their choice at the end of first, second, and third grades. Teachers and parents also rated children's emotional and behavioral problems. Children's justifications were subjected to…

This longitudinal study investigated the relative contributions of infant temperament, maternal sensitivity, and psychosocial risk to individual differences in preschool children's cognitive development. It also examined specific moderating effects between predictors as well as the specific mediating role of maternal sensitivity in the relation…

Five groups of children were identified using friendship nominations from the fall and spring of their fifth-grade year: (1) children with a stable best friendship with the same child ("same-stable"); (2) children with a mutual best friendship at Times 1 and 2, but the best friend was a different child at each time ("different-stable"); (3)…

This study examined associations between sociometric status and friendship quality using observational and questionnaire data from 139 fourth-grade girls and their friends. Multivariate analyses of covariance (controlling for ethnicity and socioeconomic status) showed that rejected girls and their friends did not differ in their reported…

Recent studies have suggested the existence of three personality types: resilients, overcontrollers, and undercontrollers. In this article, we searched for subtypes within each of the three main personality types. Using cluster analysis on the Big Five personality self-descriptions of 3,284 Dutch adolescent boys and girls, we distinguished…

Self-regulation is critical to social and personality development in all cultures. Self-regulation may have developmental origins in temperament, yet it also interacts with socialization processes. This research specifically probes children's self-regulation during resistance to temptation. Socialization of self-regulation may be influenced by the…

While there is a general consensus that temperament forms the enduring, biologically based foundation of personality and that this biological basis should imply some continuity within the individual across time, there is a limited literature exploring linkages between these areas. The purpose of this article was to provide an initial assessment of…

Cohort-sequential latent growth modeling was used to analyze longitudinal data for children's externalizing behavior from four overlapping age cohorts (4, 5, 6, and 7 years at first assessment) measured at three annual time points. The data included mother and father ratings on the Child Behavior Checklist and the Five-Factor Personality Inventory…