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ERIC Number: EJ1060470
Record Type: Journal
Publication Date: 2015
Pages: 18
Abstractor: As Provided
Reference Count: 51
ISSN: ISSN-0022-0973
Validity of a Residualized Dependent Variable after Pretest Covariance Adjustments: Still the Same Variable?
Nimon, Kim; Henson, Robin K.
Journal of Experimental Education, v83 n3 p405-422 2015
The authors empirically examined whether the validity of a residualized dependent variable after covariance adjustment is comparable to that of the original variable of interest. When variance of a dependent variable is removed as a result of one or more covariates, the residual variance may not reflect the same meaning. Using the pretest-posttest design as a general framework, the authors compared the nomological validity network for the (a) original dependent variable scores and (b) residualized dependent variable scores after having covaried-out variance explainable by a pretest. Heuristic and empirical examples are provided that demonstrate potential variation in construct validity of residualized dependent variables is a function of correlations among dependent, covariate, and validity variables.
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Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
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