This summary of Dearborn high school student performance on four achievement tests of the American College Testing Program (ACT) presents data for 768 junior and senior students who took the test during the 1981-82 school year. The ACT mean composite score for Dearborn students continues to be above the national norm. Students scored consistently above the national norm on the mathematics, social studies, and natural science tests, but their mean score on the English Usage Test was below the national norm for the third consecutive year. Mean scores of males on the English test showed a gain of +0.1 points over the nation norm, while females showed a gain of -0.7 points. Overall, the ACT results along with current Scholastic Aptitude Test (SAT) scores show that Dearborn college-bound students, while having some difficulty in English, score high academically and above the national norm. Data from the ACT High School Profile are summarized in the Appendix. (LC)