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Direct linkMorgan, Paul L.; Farkas, George; Hillemeier, Marianne M.; Maczuga, Steve – Journal of Learning Disabilities, 2016
We analyzed two nationally representative, longitudinal data sets of U.S. children to identify risk factors for persistent mathematics difficulties (PMD). Results indicated that children from low socioeconomic households are at elevated risk of PMD at 48 and 60 months of age, as are children with cognitive delays, identified developmental delays…
Descriptors: Learning Problems, Learning Disabilities, At Risk Students, Mathematics Instruction
Kim, So-Yeun; Yun, Joonkoo – Adapted Physical Activity Quarterly, 2009
This study examined sources of variability in physical activity (PA) of youth with developmental disabilities (DD), and determined the optimal number of days required for monitoring PA. Sixteen youth with DD wore two pedometers and two accelerometers for 9 days, including 5 weekdays (W) and 2 weekends (WK). A two-facet in fully crossed two-way…
Descriptors: Physical Activities, Physical Activity Level, Developmental Disabilities, Measurement Equipment
