Use of CAT in Dynamic Testing

Abstract

The assessment of learning potential—referred to as dynamic testing and generally using a test-train-retest approach—has gained some ground in the field of cognitive assessment. Despite general support for this concept and approach, both measurement and practical concerns have hampered the acceptance of these measures in general assessment contexts. Item response theory (IRT) and computerized adaptive testing (CAT) provide answers to a number of the main concerns in this field, such as long administration time, lack of standardization of administration procedures, and problems concerning measurement accuracy. The Learning Potential Computerised Adaptive Test (LPCAT), is a dynamic learning potential test that has addressed a number of the general concerns regarding dynamic testing through use of IRT and CAT. The development of the LPCAT is discussed. Empirical research results for construct and predictive validity are provided in support of its psychometric properties. Examples are provided of the qualitative interpretations of performance levels from the pre-test and the post-test that are available from the LPCAT.