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Direct linkQuinn, Jamie M.; Wagner, Richard K. – Journal of Learning Disabilities, 2015
Reading impairment is more common in males, but the magnitude and origin of this gender difference are debated. In a large-scale study of reading impairment among 491,103 beginning second-graders, gender differences increased with greater severity of reading impairment, peaking at a ratio of 2.4:1 for a broad measure of fluency and a ratio of…
Descriptors: Gender Differences, Reading Difficulties, Severity (of Disability), Learning Disabilities
Park, Yujeong; Benedict, Amber E.; Brownell, Mary T. – Exceptionality, 2014
The factor structure of the CORE Phonics Survey was analyzed using a sample of 165 students in upper elementary school with specific learning disabilities. Confirmatory factor analysis was used to identify the hypothesized constructs of the CORE Phonics Survey and predictive validity of the CORE Phonics Survey to predict students' success in word…
Descriptors: Factor Structure, Factor Analysis, Phonics, Reading Skills
Spencer, Mercedes; Quinn, Jamie M.; Wagner, Richard K. – Learning Disabilities Research & Practice, 2014
The goal of the present study was to test three competing hypotheses about the nature of comprehension problems of students who are poor in reading comprehension. Participants in the study were first, second, and third graders, totaling nine cohorts and over 425,000 participants in all. The pattern of results was consistent across all cohorts:…
Descriptors: Reading Comprehension, Reading Difficulties, Hypothesis Testing, Grade 1
