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Byrne, Brian; Wadsworth, Sally; Boehme, Kristi; Talk, Andrew C.; Coventry, William L.; Olson, Richard K.; Samuelsson, Stefan; Corley, Robin – Scientific Studies of Reading, 2013
The genetic factor structure of a range of learning measures was explored in twin children, recruited in preschool and followed to Grade 2 ("N"?=?2,084). Measures of orthographic learning and word reading were included in the analyses to determine how these patterned with the learning processes. An exploratory factor analysis of the…
Descriptors: Genetics, Preschool Children, Elementary School Students, Kindergarten
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Ding, Yi; Richman, Lynn C.; Yang, Ling-yan; Guo, Jian-peng – Journal of Learning Disabilities, 2010
The purpose of this study was to evaluate rapid automatized naming skills (RAN) and immediate memory processes in 243 Chinese Mandarin-speaking elementary readers (ranging from Grade 1 to Grade 5). For RAN subtests, the mean naming time decreased monotonically with grade level in good and average readers, and a similar trajectory was found in poor…
Descriptors: Cues, Speech Communication, Reading Difficulties, Disabilities