TY - JOUR T1 - The Information Product Methods: A Unified Approach to Dual-Purpose Computerized Adaptive Testing JF - Applied Psychological MeasurementApplied Psychological Measurement Y1 - 2017 A1 - Zheng, Chanjin A1 - He, Guanrui A1 - Gao, Chunlei AB - This article gives a brief summary of major approaches in dual-purpose computerized adaptive testing (CAT) in which the test is tailored interactively to both an examinee?s overall ability level, ?, and attribute mastery level, α. It also proposes an information product approach whose connections to the current methods are revealed. An updated comprehensive empirical study demonstrated that the information product approach not only can offer a unified framework to connect all other approaches but also can mitigate the weighting issue in the dual-information approach. VL - 42 SN - 0146-6216 UR - https://doi.org/10.1177/0146621617730392 IS - 4 JO - Applied Psychological Measurement ER -