You will never know your subject test raw score because it is not included in the score report. But you should understand how the raw score is calculated, because this knowledge can affect your strategy for approaching the test.
Your raw score on the subject test Physics Test is based on a few simple rules:
- You earn 1 point for each correct answer.
- You lose 1/ 4 of a point for each incorrect answer.
- You receive zero points for each question left blank.
Calculating the raw score is easy. Count the number of questions you answered correctly and the number of questions you answered incorrectly. Then multiply the number of wrong answers by 1/4, and subtract this value from the number of right answers:
raw score# of correct answers 1/4# of wrong answers
Suppose, for example, that of the 75 questions on the test, you answered 52
questions correctly, 18 questions incorrectly, and left five blank. Your raw
score would be calculated as follows:
The raw score is rounded to the nearest whole number. In this case, your raw
score would be 48.
ETS takes your raw score and uses a formula to turn it into the scaled score of
200–800 that you’ve probably heard so much about.
The curve to convert raw scores to scaled scores varies from test to test. For example,
a raw score of 33 on the Math IC might scale to a 600, while the same raw score on the Math
IIC might scale to a 700. In fact, the scaled score can even vary between different editions
of the same test. A raw score of 33 on the February 2004 Math IIC might scale to a 710, while
a 33 in June 2004 might scale to a 690. These differences in scaled scores exist to accomodate
the varying levels of difficulty and student performance from year to year.