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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

36,698

ERW

.521

Biology

343,360

ERW + M

.752

Calculus AB

480,485

Math

.558

Chemistry

221,688

ERW + M

.655

Computer Science A

85,611

ERW + M

.603

Computer Science Principles

102,407

ERW + M

.654

English Language

823,584

ERW

.739

English Literature

638,629

ERW

.728

Environmental Science

240,839

ERW + M

.706

European History

97,535

ERW + M

.630

Government & Politics:
Comparative

36,346

ERW + M

.589

Government & Politics:
United States

461,065

ERW + M

.647

Human Geography

76,080

ERW + M

.623

Macroeconomics

237,142

ERW + M

.624

Microeconomics

134,359

ERW + M

.632

Music Theory

25,549

ERW + M

.542

Physics 1

238,540

ERW + M

.647

Physics C: Elec. & Mag.

42,468

ERW + M

.474

Physics C: Mechanics

95,021

ERW + M

.586

Psychology

426,236

ERW + M

.636

Statistics

342,715

ERW + M

.697

U.S. History

640,108

ERW + M

.675

World History: Modern

232,331

ERW + M

.676

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