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How the Tests Are Scored

The Scoring Process

Your raw score will be determined by the number of questions you answer correctly. Questions you answer incorrectly or for which you mark no answer or more than one answer are counted as incorrect. Nothing is subtracted from a score if you answer a question incorrectly.

Your raw score is then converted to a scaled score through a process known as equating. The equating process accounts for minor variations in difficulty among the different test editions. Thus, a given scaled score reflects approximately the same level of ability regardless of the edition of the test that was taken; the same number of correct responses on different test forms will not necessarily result in the same scaled score.

GRE® Subject Test Score Scales

Every Subject Test yields a total score on a 200 to 990 score scale, in 10-point increments. Note that each of the individual test scales occupies only a portion of the 200 to 990 score range.

The Biology and Psychology Tests also yield subscores on a 20–99 score scale, in one-point increments. Note that each of the individual test subscore scales occupies only a portion of the 20 to 99 score range.

Additional Score Information

For more details regarding GRE® scores and scoring, review the GRE Score-Related Test Policies for Test Takers, which includes information on:

  • Absence from a testing session
  • Preventing unauthorized release of your scores
  • ETS review of test questions
  • Cancellation of scores by ETS
  • Test fairness and score use