ERIC Number: EJ453807
Record Type: Journal
Publication Date: 1992
Reference Count: N/A
The Influence of Dimensionality on CAT Ability Estimation.
De Ayala, R. J.
Educational and Psychological Measurement, v52 n3 p513-28 Fall 1992
Effects of dimensionality on ability estimation of an adaptive test were examined using generated data in Bayesian computerized adaptive testing (CAT) simulations. Generally, increasing interdimensional difficulty association produced a slight decrease in test length and an increase in accuracy of ability estimation as assessed by root mean square error. (SLD)
Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Authoring Institution: N/A