TY - JOUR T1 - catR: An R Package for Computerized Adaptive Testing JF - Applied Psychological Measurement Y1 - 2011 A1 - Magis, D. A1 - RaƮche, G. KW - computer program KW - computerized adaptive testing KW - Estimation KW - Item Response Theory AB -

Computerized adaptive testing (CAT) is an active current research field in psychometrics and educational measurement. However, there is very little software available to handle such adaptive tasks. The R package catR was developed to perform adaptive testing with as much flexibility as possible, in an attempt to provide a developmental and testing platform to the interested user. Several item-selection rules and ability estimators are implemented. The item bank can be provided by the user or randomly generated from parent distributions of item parameters. Three stopping rules are available. The output can be graphically displayed.

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