ERIC Number: ED445076
Record Type: RIE
Publication Date: 2000-Jan-28
Covariance Corrections: What They Are and What They Are Not.
Hines, Joy L.; Foil, Carolyn R.
Researchers are often faced with the dilemma of having to use intact groups. Analysis of covariance (ANCOVA) is sometimes used as a means of leveling unequal groups. However, only after five assumptions have been met is it safe to use ANCOVA. Part and partial correlations also invoke statistical correlation procedures. This paper reviews these covariance correction procedures, explains the relevant assumptions and potential pitfalls related to the analysis, and discusses research situations when their use is warranted or ill-advised. (Contains 1 figure, 5 tables, and 13 references.) (Author/SLD)
Publication Type: Reports - Descriptive; Speeches/Meeting Papers
Education Level: N/A
Authoring Institution: N/A
Note: Paper presented at the Annual Meeting of the Southwest Educational Research Association (Dallas, TX, January 27-29, 2000).