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Wagner, Richard K.; Beal, Bethany; Zirps, Fotena A.; Spencer, Mercedes – Annals of Dyslexia, 2021
Many individuals with poor reading comprehension have levels of reading comprehension that are consistent with deficits in their ability to decode the words on the page. However, there are individuals who are poor at reading comprehension despite being adequate at decoding. This phenomenon is referred to as specific reading comprehension deficit…
Descriptors: Reading Comprehension, Reading Difficulties, Decoding (Reading), Incidence
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Wagner, Richard K.; Edwards, Ashley A.; Malkowski, Antje; Schatschneider, Chris; Joyner, Rachel E.; Wood, Sarah; Zirps, Fotena A. – New Directions for Child and Adolescent Development, 2019
Despite decades of research, it has been difficult to achieve consensus on a definition of common learning disabilities such as dyslexia. This lack of consensus represents a fundamental problem for the field. Our approach to addressing this issue is to use model-based meta-analyses and Bayesian models with informative priors to combine the results…
Descriptors: Dyslexia, Learning Disabilities, Meta Analysis, Bayesian Statistics
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Wagner, Richard K.; Moxley, Jerad; Schatschneider, Chris; Zirps, Fotena A. – Scientific Studies of Reading, 2023
Purpose: Bayesian-based models for diagnosis are common in medicine but have not been incorporated into identification models for dyslexia. The purpose of the present study was to evaluate Bayesian identification models that included a broader set of predictors and that capitalized on recent developments in modeling the prevalence of dyslexia.…
Descriptors: Bayesian Statistics, Identification, Dyslexia, Models
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Joyner, Rachel E.; Wagner, Richard K. – Scientific Studies of Reading, 2020
Despite the importance of identifying individuals with reading disabilities, existing operational definitions of reading disability do not result in reliable identification. A large part of the problem arises from measurement error when a cut-point is imposed on a continuous distribution, especially for low base-rate conditions. One way to reduce…
Descriptors: Meta Analysis, Reading Difficulties, Mathematics, Learning Disabilities
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Wood, Sarah G.; Moxley, Jerad H.; Tighe, Elizabeth L.; Wagner, Richard K. – Journal of Learning Disabilities, 2018
Text-to-speech and related read-aloud tools are being widely implemented in an attempt to assist students' reading comprehension skills. Read-aloud software, including text-to-speech, is used to translate written text into spoken text, enabling one to listen to written text while reading along. It is not clear how effective text-to-speech is at…
Descriptors: Reading Comprehension, Reading Difficulties, Assistive Technology, Meta Analysis
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Quinn, Jamie M.; Wagner, Richard K. – Child Development, 2018
The purpose of this review was to introduce readers of "Child Development" to the meta-analytic structural equation modeling (MASEM) technique. Provided are a background to the MASEM approach, a discussion of its utility in the study of child development, and an application of this technique in the study of reading comprehension (RC)…
Descriptors: Meta Analysis, Reading Comprehension, Structural Equation Models, Factor Structure
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Spencer, Mercedes; Wagner, Richard K. – Journal of Research in Reading, 2017
We conducted a meta-analysis of 16 existing studies to examine the nature of the comprehension problems for children who were second-language learners with poor reading comprehension despite adequate decoding. Results indicated that these children had deficits in oral language (d = -0.80), but these deficits were not as severe as their reading…
Descriptors: Reading Comprehension, Reading Difficulties, Second Language Learning, Meta Analysis
Spencer, Mercedes; Wagner, Richard K. – Review of Educational Research, 2018
The purpose of this meta-analysis was to examine the comprehension problems of children who have a specific reading comprehension deficit (SCD), which is characterized by poor reading comprehension despite adequate decoding. The meta-analysis included 86 studies of children with SCD who were assessed in reading comprehension and oral language…
Descriptors: Reading Comprehension, Decoding (Reading), Language Skills, Developmental Delays