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Bailey, MarLynn; Taasoobshirazi, Gita; Carr, Martha – Journal of Educational Research, 2014
Previous studies have shown that several key variables influence student achievement in geometry, but no research has been conducted to determine how these variables interact. A model of achievement in geometry was tested on a sample of 102 high school students. Structural equation modeling was used to test hypothesized relationships among…
Descriptors: Mathematics Achievement, Geometry, High School Students, Secondary School Mathematics
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Kerr, David C. R.; Reinke, Wendy M.; Eddy, J. Mark – Suicide and Life-Threatening Behavior, 2013
We examined associations between adolescent problem trajectories and suicide risk outcomes in 361 community participants. Depressive symptoms (self-report) and externalizing behaviors (parent report) were assessed six times from grades 5 to 10. Parallel process linear growth curves indicated that lifetime suicide attempt history assessed to age 25…
Descriptors: Correlation, Adolescents, At Risk Persons, Suicide
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Fredricks, Jennifer A.; Eccles, Jacquelynn S. – Journal of Youth and Adolescence, 2005
In this article, we test: (a) the relation between school-based extracurricular participation and indicators of positive and negative development across a range of activity contexts, and (b) a mediation model linking activity participation, prosocial peers, and development. Extensive survey information was collected from a predominately White…
Descriptors: Extracurricular Activities, Grade 9, Grade 10, Grade 12