Examinee response times from a computerized adaptive test taken by 204 examinees taking a certification examination were analyzed using a hierarchical linear model. Two equations were posed: a within-person model and a between-person model. Variance within persons was eight times greater than variance between persons. Several variables…

It is important to estimate the number of examinees who reached a test item, because item difficulty is defined by the number who answered correctly divided by the number who reached the item. A new method is presented and compared to the previously used definition of three categories of response to an item: (1) answered; (2) omitted--a…

The effect of increased writing or planning time on a test of basic college level writing ability was studied. The essay portion of the New Jersey College Basic Skills Placement Test was given to students in nine New Jersey public colleges and three New Jersey public high schools. Each student wrote two essays on two different topics. The first…