The scalability of individual trait scores on a computerized adaptive test (CAT) was assessed through investigating the consistency of individual item score patterns. A sample of N = 428 persons completed a personality CAT as part of a career development procedure. To detect inconsistent item score patterns, we used a cumulative sum (CUSUM) procedure. Combined information from the CUSUM, other personality measures, and interviews showed that similar estimated trait values may have a different interpretation. Implications for computer-based assessment are discussed.
- Computerized Adaptive Testing
- Person fit
- Personality assessment
Egberink, I. J. L., Meijer, R. R., Veldkamp, B. P., Schakel, L., & Smid, N. G. (2010). Detection of aberrant item score patterns in a computerized personality test: An empirical example using the CUSUM. Personality and individual differences, 48(8), 921-925. https://doi.org/10.1016/j.paid.2010.02.023