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?

projective nature
subjective nature
length
norms

2 answers

My -- you have a lot of aliases! Are you sindy, tanya, sandy, kelly, christina, anya -- or none of the above?

This answer is obvious if you've read your material and understand the four choices. We'll be glad to check YOUR answer.
http://www.answers.com/normative