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AP Potential

Score Correlations

The table below shows the number of students that participated in the study, the section(s) of the PSAT/NMSQT that were used to predict performance, and the correlation between PSAT/NMSQT performance and AP performance for each AP Exam. A correlation measures the strength and direction of the relationship between two variables, in this case, PSAT/NMSQT scores and AP exam scores. Correlation values range from -1 to +1 with absolute values of approximately 0.1 considered to represent a small relationship, absolute values of approximately 0.3 considered to represent a moderate relationship, and absolute values of 0.5 or higher considered to represent a strong relationship. A positive correlation, like those seen between PSAT/NMSQT scores and AP exam scores, indicates PSAT/NMSQT scores are useful for identifying students who are likely to do well in AP courses and exams.

AP Exam Sample Size PSAT/NMSQT Section Used PSAT/NMSQT Correlation
Art History 27,679 CR + W .563
Biology 205,036 CR + M .647
Calculus AB 341,698 Math .539
Chemistry 139,600 CR + M .611
Computer Science A 21,607 CR + M .594
English Language 445,235 CR + W .762
English Literature 500,972 CR + W .754
Environmental Science 109,290 CR + M .668
European History 80,532 CR + M + W .621
Government & Politics:
Comparative
22,037 CR + M + W .598
Government & Politics:
United States
271,889 CR + M + W .648
Human Geography 25,017 CR + M + W .644
Macroeconomics 112,839 CR + M .595
Microeconomics 68,095 CR + M .633
Music Theory 19,842 Math .465
Physics 1 291,922 CR + M .631
Physics C: Mechanics 48,928 CR + M .566
Physics C: Elec. & Mag. 21,847 Math .465
Psychology 212,402 CR + M + W .618
Statistics 171,871 CR + M .651
U.S. History 419,099 CR + M + W .661
World History 84,942 CR + M + W .664

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