This study examined how adolescents' emotions in mathematics develop over time. Growth curve modeling was applied to longitudinal data collected annually from 2002 to 2006 (Grades 5-9; N = 3425 German adolescents; M[subscript age] = 11.7, 15.6 years at the first and last waves, respectively; 50.0% female). Results indicated that enjoyment and…

This study investigated trajectories of individual and vicarious online racial discrimination (ORD) and their associations with psychological outcomes for African American and Latinx adolescents in 6th-12th grade (N = 522; "M"[subscript grade] = 9th) across three waves. Data were analyzed using growth mixture modeling to estimate…

This study examined teacher-child conflict as a possible mediator of the effects of temperamental anger and effortful control on subsequent externalizing behavior. Reciprocal influences between teacher-child conflict and externalizing behavior were also examined. Participants were 1,152 children (49% female; 81.6% non-Hispanic White) from the…

This study examines associations between leisure reading and reading skills in data of 2,525 students followed from age 7 to 16. As a step further from traditional cross-lagged analysis, a random intercept cross-lagged panel model was used to identify within-person associations of leisure reading (books, magazines, newspapers, and digital…

The authors explored trajectories of perceived discrimination over a 6-year period (five assessments in 6th-11th grade) in relation to academic, behavioral, and psychological adjustment in 8th and 11th grades. They distinguished discrimination from adults versus peers in addition to overt versus covert discrimination from peers. The sample…

How does understanding the decimal system change with age and experience? Second, third, sixth graders, and adults (Experiment 1: N = 96, mean ages = 7.9, 9.23, 12.06, and 19.96 years, respectively) made number line estimates across 3 scales (0-1,000, 0-10,000, and 0-100,000). Generation of linear estimates increased with age but decreased with…

Do preadolescent sport self-concepts influence subsequent sport performance? Longitudinal data (Grades 3, 4, and 6) for young boys and girls (N = 1,135; mean age = 9.67) were used to test reciprocal effects model (REM) predictions that sport self-concept is both a cause and a consequence of sport accomplishments. Controlling prior sport…

The most significant finding is that stimulus-predifferentiation training elicited lower prejudice scores for children on two indices of ethnic attitudes than did a no-label control condition. (Author)

Results indicated that Piagetian developmental level significantly predicted problem-solving performance, whereas level of field independence did not appear to clarify individual differences in a meaningful way. (Author)

Research was designed to determine whether developmental differences in sensitivity to more peripherally presented material could be found under conditions in which overt eye movements during the presentation of task material were not possible. (Author)

In two studies, second and sixth graders heard descriptions of hypothetical boys and girls who were either aggressive, socially withdrawn, or prosociable. Subjects' memories of items in the descriptions were assessed. Results indicated that school-age and early adolescent children's recall of information about a peer is affected by the peer's…

Examined differences in moral judgments as they relate to informational assumptions. Sixth graders, high school seniors, and college students evaluated events concerning welfare, justice, and rights and reevaluated them in light of the opposite information. The relation between evaluations and informational assumptions was significant within each…

Explores the factors associated with expected outcome of emotional expression and likelihood of expression among 125 first-, fourth-, and sixth-grade children. Results suggest that socialization practices tend to be directed towards the suppression of sadness among males. (RJC)

Causal interpretations of story characters' helpful behavior were examined in first, fourth, and sixth graders, and in college-age students. Subjects heard stories featuring actors' anticipations of eight different consequences for helping. Differences in ratings of actors among age groups were discussed. (Author/CI)