A constrained computerized adaptive testing (CAT) algorithm is presented that automatically equates the number-correct scores on adaptive tests. The algorithm can be used to equate number-correct scores across different administrations of the same adaptive test as well as to an external reference test. The constraints are derived from a set of conditions on item response functions that guarante...

BACKGROUND The Montreal Cognitive Assessment (MoCA) was developed to enable earlier detection of mild cognitive impairment (MCI) relative to familiar multi-domain tests like the Mini-Mental State Exam (MMSE). Clinicians need to better understand the relationship between MoCA and MMSE scores. METHODS For this cross-sectional study, we analyzed 219 healthy control (HC), 299 MCI, and 100 Alzheim...

Presmoothing and postsmoothing improve equating by reducing sampling error. However, little research has been conducted about similarities in equated-equivalents between presmoothing and postsmoothing. This simulation study considers log-linear presmoothing and cubic-spline postsmoothing. The study mainly focuses on how equated equivalents differ between presmoothing and postsmoothing for diffe...