Small N Does Not Always Justify Rasch Model
- 1 June 1986
- journal article
- research article
- Published by SAGE Publications in Applied Psychological Measurement
- Vol. 10 (2) , 187-194
- https://doi.org/10.1177/014662168601000210
Abstract
In many applications of item response theory, it is of little consequence whether the Rasch model or a more accurate, but more complicated item response model is used. With small sample sizes, it might be advantageous to employ the Rasch model. A clear counterexample is the case of optimal item selection under guessing.Keywords
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