To compare one person’s test scores to the scores of all other people who took the test, psychologists must know something about the test’s:

A. projective nature.
B. subjective nature.
C. length.
D. norms.

A

No.

You can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.

I would suggest Googling "test ______" to find what you are seeking.

The correct answer is D. norms.

To compare one person's test scores to the scores of all other people who took the test, psychologists must know something about the test's norms. Norms refer to the established standards or average performance of a group of people who have taken the test before. Norms provide a basis for comparison and interpretation of an individual's scores by indicating how well or how poorly they perform in relation to the larger group.

Knowing the norms allows psychologists to determine if a person's test score is above average, below average, or average compared to the scores of others. Norms also help in identifying any significant deviations from the expected pattern of scores within the group. By understanding the test's norms, psychologists can provide a more accurate assessment and interpretation of an individual's performance on the test.