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Direct linkLosh, Molly; Martin, Gary E.; Lee, Michelle; Klusek, Jessica; Sideris, John; Barron, Sheila; Wassink, Thomas – Journal of Autism and Developmental Disorders, 2017
Genetic liability to autism spectrum disorder (ASD) can be expressed in unaffected relatives through subclinical, genetically meaningful traits, or endophenotypes. This study aimed to identify developmental endophenotypes in parents of individuals with ASD by examining parents' childhood academic development over the school-age period. A cohort of…
Descriptors: Genetics, Autism, Pervasive Developmental Disorders, Parents
Warne, Russell T. – Gifted Child Quarterly, 2014
Above-level testing is the practice of administering aptitude or academic achievement tests that are designed for typical students in higher grades or older age-groups to gifted or high-achieving students. Although widely accepted in gifted education, above-level testing has not been subject to careful psychometric scrutiny. In this study, I…
Descriptors: Academically Gifted, Middle School Students, Longitudinal Studies, Hierarchical Linear Modeling
Grouws, Douglas A.; Tarr, James E.; Chavez, Oscar; Sears, Ruthmae; Soria, Victor M.; Taylan, Rukiye D. – Journal for Research in Mathematics Education, 2013
This study examined the effect of 2 types of mathematics content organization on high school students' mathematics learning while taking account of curriculum implementation and student prior achievement. Hierarchical linear modeling with 3 levels showed that students who studied from the integrated curriculum were significantly advantaged over…
Descriptors: Secondary School Mathematics, Curriculum Implementation, Integrated Curriculum, High School Students
