ERIC Number: EJ670679
Record Type: Journal
Publication Date: 2003
Reference Count: N/A
The Precision of Gain Scores under an Item Response Theory Perspective: A Comparison of Asymptotic and Exact Conditional Inference about Change.
Fischer, Gerhard H.
Applied Psychological Measurement, v27 n1 p3-26 Jan 2003
Compared approaches to determining the precision of gain scores: (1) the asymptotic normal distribution of the maximum likelihood estimator of the person parameter; and (2) the exact conditional distribution of the gain score. Use of three data sets illustrates that these methods yield more relevant and more detailed information than traditional estimation of reliability as a sole indicator of precision. (SLD)
Publication Type: Journal Articles
Education Level: N/A
Authoring Institution: N/A