Effects of passage and item-scrambling on equipercentile and item-response theory equating were investigated using 2 scrambled versions of the American College Testing Program Assessment for approximately 25,000 examinees. Results indicate that using a base-form conversion table with a scrambled form affects the individual examinee level. (SLD)

This user handbook includes four main sections: (1) components of the American College Testing (ACT) Program Assessment; (2) ACT Assessment Reports and Data Services; (3) using ACT student data; and (4) ACT assessment participation. The components described are the four tests of educational development, the High School Course/Grade Information…

This manual contains preliminary information, largely of a technical nature, about the enhanced American College Testing (ACT) Program introduced in October 1989. It focuses primarily on the tests of educational development, the component of the program that has been substantially revised. Although one-third of the ACT Interest Inventory Items has…