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ERIC Number: EJ856640
Record Type: Journal
Publication Date: 2009
Pages: 18
Abstractor: As Provided
Reference Count: 73
ISSN: ISSN-0013-1644
Construct Equivalence across Grades in a Vertical Scale for a K-12 Large-Scale Reading Assessment
Wang, Shudong; Jiao, Hong
Educational and Psychological Measurement, v69 n5 p760-777 2009
In practice, vertical scales have been continually used to measure students' achievement progress across several grade levels and have been considered very challenging psychometric procedures. Recently, such practices have been drawing many criticisms. The major criticisms focus on dimensionality and construct equivalence of the latent trait or construct of a vertical scale. Using data from a large-scale reading comprehension assessment program with a vertical scale, this study investigated the dimensionality or the factorial structure for each grade and the equivalence of the factorial structure across grades. The empirical results from this study support the unidimensionality assumption of vertical scale across grades. The results provide empirical evidence regarding construct invariance of vertical scale across wide span of grades. (Contains 1 figure and 4 tables.)
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Publication Type: Journal Articles; Reports - Research
Education Level: Elementary Secondary Education; Grade 10; Grade 3; Grade 4; Grade 5; Grade 6; Grade 7; Grade 8; Grade 9
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A