ERIC Number: ED079385
Record Type: RIE
Publication Date: 1958-Sep
Reference Count: 0
Comparability Vs. Equivalence of Test Scores.
Wesman, Alexander G.
Test Service Bulletin, n53 p6-9 Sep 1958
Comparable scores represent equal rank in a given population-they imply nothing concerning what is being measured. Equivalent scores represent similarity of what is being measured -- the more complete the equivalence, the greater the likeness of measurement. The test user would do well to keep these distinctions in mind; to avoid being confused into accepting comparable scores as denoting equivalence of measurement; to insist on close approximations to complete equivalence in alternate forms; and to recognize that in substituting one test for another he may prefer rough equivalence to more precise equivalence if he is seeking to improve validity. (Author)
Publication Type: N/A
Education Level: N/A
Authoring Institution: Psychological Corp., New York, NY.
Note: Reprint from Test Service Bulletin