Based on investment theories and guided by Mussel's (2013) intellect model, the present study investigated reciprocal relations over 1 year (2021-2022) between investment traits (need for cognition, achievement motives, epistemic curiosity) and fluid and crystallized cognitive abilities in 565 German elementary school children (298 girls;…

This research examined parents' involvement in children's math homework and activities. During 2017 to 2019, American parents (N = 483; 80% mothers; 67% white) of young elementary school children (M[subscript age] = 7.47 years; 50% girls) reported on their math helping self-efficacy; they also reported on their involvement in children's math…

This research examined how motivation (perceived control, intrinsic motivation, and extrinsic motivation), cognitive learning strategies (deep and surface strategies), and intelligence jointly predict long-term growth in students' mathematics achievement over 5 years. Using longitudinal data from six annual waves (Grades 5 through 10;…

The role of adolescents' disclosure to their parents in their academic adjustment was examined in a study of 825 American and Chinese adolescents (mean age = 12.73 years). Four times over the seventh and eighth grades, adolescents reported on their spontaneous disclosure of everyday activities to their parents, the quality of their relationships…

This research examined motivational trajectories during early adolescence in the United States and China. Upon their entry into middle school at 7th grade and every 6 months thereafter until the end of 8th grade, 825 American and Chinese children (mean age = 12.73 years) reported on their motivational beliefs (e.g., mastery orientation) and…

This study examined the effects of peer groups on changes in academic engagement in 11- to 13-year-old children. From the entire cohort of 366 sixth graders in a town, 87% participated at the beginning and end of the school year. Peer groups were assessed using socio-cognitive mapping; as an indicator of motivation, teachers reported on students'…

Three studies replicated and extended Dweck's findings regarding young children's responses to challenging achievement situations. Findings indicated that a composite of cognitive, behavioral, and affective helplessness indices at kindergarten age predicted helplessness 1 and 5 years later, above and beyond gender and kindergarten task ability.…

Tested the hypothesis that home environment positively predicts academic intrinsic motivation from childhood through early adolescence, controlling for socioeconomic status. Found that home environment had statistically positive and significant, direct and indirect paths to academic intrinsic motivation; children whose homes had greater emphasis…

Used social network analysis to investigate the peer group as context for socialization of young adolescents' school motivation and achievement. Found that students' Fall peer context predicted changes in liking and enjoyment of school and achievement over the year. Students' peer context was unrelated to changes in their beliefs about the…