Journal article

Evaluating content alignment in computerized adaptive testing


Published in:

Educational Measurement: Issues and Practice, 34(4), 41–18.

By: Norman Webb


The alignment between a test and the content domain it measures represents key evidence for the validation of test score inferences. Although procedures have been developed for evaluating the content alignment of linear tests, these procedures are not readily applicable to computerized adaptive tests (CATs), which require large item pools and do not use fixed test forms. This article describes the decisions made in the development of CATs that influence and might threaten content alignment. It outlines a process for evaluating alignment that is sensitive to these threats and gives an empirical example of the process.

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This article was published outside of NWEA. The full text can be found at the link above.

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