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An AP placement validity study requires a minimum of 15 students whose AP scores and course-taking records indicate that they entered the higher-level course with AP credit. It also requires a minimum of 15 students without AP credit whose course-taking records indicate that they entered the higher-level course by completing the required introductory AP-equivalent course(s) at your institution.

A CLEP placement study requires a minimum of 15 students whose CLEP scores and course-taking records indicate that they entered the higher-level course with CLEP credit, and a minimum of 15 students without CLEP credit whose course-taking records indicate that they entered the higher-level course by completing the required introductory CLEP-equivalent course(s) at your institution.

For SAT and ACCUPLACER placement studies, course data for at least 30 students are required for a course placement analysis involving a single predictor measure. If more predictors are included in a course analysis, an additional 10 students are required for each predictor measure. So, a course analysis with two predictors would require at least 40 students, a course analysis with three predictors would require at least 50 students, and so forth.

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You can reach ACES by telephone at 800-439-8309 or by email at [email protected].