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Developmental Relations between Vocabulary Knowledge and Reading Comprehension: A Latent Change Score Modeling Study
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Quinn, Jamie M.; Wagner, Richard K.; Petscher, Yaacov; Lopez, Danielle – Child Development, 2015
The present study followed a sample of first-grade (N = 316, M[subscript age] = 7.05 at first test) through fourth-grade students to evaluate dynamic developmental relations between vocabulary knowledge and reading comprehension. Using latent change score modeling, competing models were fit to the repeated measurements of vocabulary knowledge and…
Descriptors: Child Development, Vocabulary Development, Reading Comprehension, Elementary School Students
Examining the Underlying Dimensions of Morphological Awareness and Vocabulary Knowledge
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Spencer, Mercedes; Muse, Andrea; Wagner, Richard K.; Foorman, Barbara; Petscher, Yaacov; Schatschneider, Christopher; Tighe, Elizabeth L.; Bishop, M. Denise – Reading and Writing: An Interdisciplinary Journal, 2015
We report results from two studies on the underlying dimensions of morphological awareness and vocabulary knowledge in elementary-aged children. In Study 1, 99 fourth-grade students were given multiple measures of morphological awareness and vocabulary. A single factor accounted for individual differences in all morphology and vocabulary…
Descriptors: Elementary School Students, Intermediate Grades, Grade 4, Middle School Students
Modeling the Co-Development of Correlated Processes with Longitudinal and Cross-Construct Effects
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Petscher, Yaacov; Quinn, Jamie M.; Wagner, Richard K. – Developmental Psychology, 2016
Conceptualizations of developmental trends are driven by the particular method used to analyze the period of change of interest. Various techniques exist to analyze developmental data, including individual growth curve analysis in observed and latent frameworks, cross-lagged regression to assess interrelations among variables, and multilevel…
Descriptors: Individual Development, Correlation, Longitudinal Studies, Oral Reading
Text Comprehension Mediates Morphological Awareness, Syntactic Processing, and Working Memory in Predicting Chinese Written Composition Performance
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Guan, Connie Qun; Ye, Feifei; Wagner, Richard K.; Meng, Wanjin; Leong, Che Kan – Journal of Educational Psychology, 2014
The goal of the present study was to test opposing views about 4 issues concerning predictors of individual differences in Chinese written composition: (a) whether morphological awareness, syntactic processing, and working memory represent distinct and measureable constructs in Chinese or are just manifestations of general language ability; (b)…
Descriptors: Chinese, Writing (Composition), Reading Comprehension, Morphology (Languages)
Modeling the Development of Written Language
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Wagner, Richard K.; Puranik, Cynthia S.; Foorman, Barbara; Foster, Elizabeth; Wilson, Laura Gehron; Tschinkel, Erika; Kantor, Patricia Thatcher – Reading and Writing: An Interdisciplinary Journal, 2011
Alternative models of the structure of individual and developmental differences of written composition and handwriting fluency were tested using confirmatory factor analysis of writing samples provided by first- and fourth-grade students. For both groups, a five-factor model provided the best fit to the data. Four of the factors represented…
Descriptors: Spelling, Writing Evaluation, Handwriting, Models