ERIC Number: EJ270529
Record Type: Journal
Publication Date: 1982-Jun
Reference Count: N/A
The Relative Error Magnitude in Three Measures of Change.
Zimmerman, Donald W.; Williams, Richard H.
Psychometrika, v47 n2 p141-47 Jun 1982
Formulas for the standard error of measurement of three measures of change (simple differences; residualized difference scores; and a measure introduced by Tucker, Damarin, and Messick) are derived. A practical guide for determining the relative error of the three measures is developed. (Author/JKS)
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A