Validity evidence based on test content is important for educational tests to demonstrate the degree to which they fulfill their purposes. Most content validity studies involve subject matter experts (SMEs) who rate items that comprise a test form. In computerized-adaptive testing, examinees take different sets of items and test "forms"…

This study developed a prototype occupational interest inventory for academically disadvantaged/functionally illiterate adults. The reliability and validity of the prototype were determined by comparing the results with those of a standardized commercially-available occupational interest inventory. A counterbalance design was employed with 30…

This paper studied the usefulness of differential item functioning (DIF) methodology for examining potential mode effects. Although the goal was not to validate the comparability of the assessments per se, it is of interest to speculate why some formats could give rise to differential performance. Data were obtained from two instruments on which…