Peer reviewedERIC Number: EJ542068
Record Type: Journal
Publication Date: 1996
Pages: N/A
Abstractor: N/A
ISBN: N/A
ISSN: ISSN-0146-6216
EISSN: N/A
Available Date: N/A
Commentary on the Commentaries of Collins and Humphreys.
Williams, Richard H.; Zimmerman, Donald W.
Applied Psychological Measurement, v20 n3 p295-97 Sep 1996
The critiques by L. Collins and L. Humphreys in this issue illustrate problems with the use of gain scores. Collins' examples show that familiar formulas for the reliability of differences do not reflect the precision of measures of change. Additional examples demonstrate flaws in the conventional approach to reliability. (SLD)
Descriptors: Achievement Gains, Change, Correlation, Error of Measurement, Measurement Techniques, Reliability, Scores, Test Theory
Publication Type: Book/Product Reviews; Reports - Evaluative; Journal Articles
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A
Author Affiliations: N/A
