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Peer reviewed Peer reviewed
ERIC Number: EJ578644
Record Type: CIJE
Publication Date: 1998
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: ISSN-0013-1644
Measuring Change Conventionally and Adaptively.
May, Kim; Nicewander, W. Alan
Educational and Psychological Measurement, v58 n6 p882-97 Dec 1998
The degree to which scale distortion in the ordinary difference score can be removed by using differences based on estimated examinee proficiency (theta) in either conventional or adaptive testing situations was studied using Item Response Theory. Using estimated thetas removed much scale distortion for both conventional and adaptive tests. (SLD)
Descriptors: Ability, Achievement Gains, Adaptive Testing, Estimation (Mathematics), Item Response Theory, Measurement Techniques, Tests
Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: Difference Scores; Gain Scores