This report examines both the substantiveness and statistical significance of differences between mean American College Testing (ACT) Program assessment scale scores. The first part of the report describes the development and results of a method for interpreting the substantiveness of mean differences in terms of test items correctly answered. For…

This study examined the relationship between student effort and performance on the Collegiate Assessment of Academic Proficiency (CAAP), a standardized measure of postsecondary educational development, while statistically controlling for American College Testing (ACT) Assessment scores, ethnicity, gender, length of time between ACT Assessment and…

This study examined the relationships between students' noncognitive characteristics and their performance on the ACT Assessment. Of particular interest were the contributions of these noncognitive variables to explaining ACT Assessment performance (over and above course work taken, grades earned, and high school attended). The sample for the…

This study examined the extent to which selected high school academic variables and noncognitive characteristics of American College Testing (ACT)--tested students explain differential test performance of racial/ethnic and gender groups. Of particular interest was the extent to which the noncognitive variables, over and above course work taken,…