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More Tennessee students are taking Advanced Placement courses, but their scores are below the national average, according to a College Board report released Tuesday.

The report shows nationally 20 percent of students in the class of 2013 scored a three or higher on an AP exam. In Tennessee, that number was 10 percent.

AP tests are scored from one to five. One is the lowest, and five is the highest. A three is condsidered passing and is typically accepted by colleges for credit.