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Tighe, Elizabeth L.; Schatschneider, Christopher – Journal of Learning Disabilities, 2016
The purpose of this study was to investigate the joint and unique contributions of morphological awareness and vocabulary knowledge at five reading comprehension levels in adult basic education (ABE) students. We introduce the statistical technique of multiple quantile regression, which enabled us to assess the predictive utility of morphological…
Descriptors: Adult Basic Education, Adult Students, Morphology (Languages), Vocabulary
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Fracasso, Lucille E.; Bangs, Kathryn; Binder, Katherine S. – Journal of Learning Disabilities, 2016
The Adult Basic Education (ABE) population consists of a wide range of abilities with needs that may be unique to this set of learners. The purpose of this study was to better understand the relative contributions of phonological decoding and morphological awareness to spelling, vocabulary, and comprehension across a sample of ABE students. In…
Descriptors: Adult Basic Education, Intervention, Phonological Awareness, Morphology (Languages)
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Swanson, H. Lee – Journal of Learning Disabilities, 2012
A meta-analysis by Tran, Sanchez, Arellano, and Swanson (2011) of the published RTI literature found that the magnitude of effect size (ES) between responders and low responders at posttest was significantly moderated by the pretest ES and the type of dependent measure administered, whereas no significant moderating effects were found in the mixed…
Descriptors: Evidence, Intervention, Effect Size, Pretests Posttests
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Elbro, Carsten – Journal of Learning Disabilities, 2010
General cognitive ability is still a factor in current definitions of dyslexia despite two decades of research showing little or no relevance to the nature of dyslexia. This article suggests one reason why this may be so. The suggestion is based on a distinction between dyslexia as a disability (poor ability)--as it is viewed and explained by…
Descriptors: Dyslexia, Reading Ability, Cognitive Ability, Severity (of Disability)