Finite mixture models are well known to have poorly behaved likelihood functions featuring singularities and multiple optima. Growth mixture models may suffer from fewer of these problems, potentially benefiting from the structure imposed on the estimated class means and covariances by the specified growth model. As demonstrated here, however,…

The current study explored the relationships between parenting practices and adolescent drug use. Suburban middle school students (N = 2129) completed surveys that included measures of perceived parental monitoring, discipline and setting an anti-drug message as well as measures of drug-related knowledge, attitudes and peer norms. Results…

Social-cognitive career theory (R. W. Lent, S. D. Brown, & G. Hackett, 1994) postulates that changes in self-efficacy precede changes in interests, but the cross-sectional nature of most research has precluded the examination of temporal precedence in the relation between these variables. The authors assessed college students' career interests and…

Our aim in this study was to validate a stress-process model for Hispanic caregivers of adults with mental retardation that incorporates family functioning. The model postulates that maladaptive adult behaviors are related to poorer family relationships and higher levels of family burden, which in turn is related to caregiver psychological…

The aim of the present study was to better understand the combined and unique effects of teacher-student and parent-child relationships in students' achievement motivation and self-esteem. Participants were 3450 high school students administered items assessing their interpersonal relationships, academic motivation and engagement, academic…

Young children's learning--and how their learning is distributed by social background--may be influenced by the structural and organizational properties of their school. This study focuses on one important structural dimension of these educational contexts: "size." This study differs from extant studies linking size to student outcomes in four…

The present study was conducted to determine the effects of students' perception of both teacher support and students' reaction to questioning on the instrumental help-seeking strategy used by students. The researchers also examined the relationships between these three variables and the motivational components of achievement goal theory. A…

This study examines program elements related to reductions in drug use and crime among Drug Treatment Courts (DTC) participants as well as theoretical mechanisms--increased social controls and improved perceptions of procedural justice--expected to mediate the effects of DTC on these outcomes. Data are from 157 research participants interviewed…

Instructional designers need to understand the internal processes of learning, identify learners' cognitive difficulties with those processes, and create strategies to help learners overcome those difficulties. Generative learning theory, one conception of human learning about cognitive functioning and process, emphasizes that meaningful learning…

The current study examined important predictors of substance use during early adolescence. The authors hypothesized that adolescents' relationships with key adults (i.e., teachers and parents) influence their choices to use substances indirectly through links with their decisions regarding peer groups. A total of 461 middle school students from an…

Validity data are presented for a new measure of threat appraisals in response to community violence. Adolescents (N = 358; 45% male; 91% African American, M = 12.10 years, SD = 1.63) and their maternal caregivers participated in two waves of a longitudinal interview study focused on the consequences of exposure to community violence. Structural…

Background: There is uncertainty about the extent to which mildly sub-optimal perinatal characteristics among individuals born near-term (greater than 33 weeks of gestation) are associated with various subsequent childhood problems, including antisocial behavior. There is even more uncertainty about whether the pathway to antisocial behavior…

Background: The goals of this prospective longitudinal study were to monitor levels of psychosocial stress in children and adolescents with Tourette syndrome (TS) and/or obsessive-compulsive disorder (OCD) compared to healthy control subjects and to examine the relationship between measures of psychosocial stress and fluctuations in tic,…

This study seeks to assess the impact of maternal psychological well-being on the depression and anxiety levels and social withdrawal in a sample of young African American and Caucasian adolescents between the ages of 10 and 14 (N = 854) using data from the National Longitudinal Survey of Youth 1979 child sample. Analyses using structural equation…

Purpose: This paper aims to demonstrate that students' self-evaluations contribute to improving academic results and life skills. Design/methodology/approach: Taking as reference a group of previously validated scales (part 1: measurement), a causal model is developed. Hypotheses are tested through the structural equations methodology by using the…