The preliminary report--two-thirds of which consists of tabular data--describes an early identification system used in London, Ontario (Canada) for kindergarten and first grade high risk students, and provides some data bearing on the internal consistency and concurrent validity of the system. Simple descriptive summaries of some characteristics…

The purpose of this study was to use realistically simulated data to evaluate various CAT designs for use with the verbal reasoning measure of the Medical College Admissions Test (MCAT). Factors such as item pool depth, content constraints, and item formats often cause repeated adaptive administrations of an item at ability levels that are not…