Examining the underlying dimensions of morphological awareness and vocabulary knowledge

被引：0
作者：
Mercedes Spencer
Andrea Muse
Richard K. Wagner
Barbara Foorman
Yaacov Petscher
Christopher Schatschneider
Elizabeth L. Tighe
M. Denise Bishop
机构：
[1] Florida State University,Department of Psychology, The Florida Center for Reading Research
来源：
Reading and Writing | 2015年 / 28卷
关键词：
Vocabulary knowledge; Morphological awareness; Structural equation modeling; Item response modeling;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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 assessments. Study 2 extended these results by giving 90 eighth-grade students expanded measures of vocabulary and morphology that assessed (a) definitional knowledge, (b) usage, (c) relational knowledge, and (d) knowledge of morphological variants, with each potential aspect of knowledge assessed using an identical set of 23 words to control for differential knowledge of specific vocabulary items. Results indicated that a single-factor model that encompassed morphological and vocabulary knowledge provided the best fit to the data. Finally, explanatory item response modeling was used to investigate sources of variance in the vocabulary and morphological awareness tasks we administered. Implications for assessment and instruction are discussed.
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页码：959 / 988
页数：29
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