Larry tells you that his ten-year-old cousin recently completed an intelligence test that translated raw scores into deviation IQ scores. Larry knows that her score was 120, but he is not sure what this means. What could you tell him about his cousin's performance?

Question

Quizplus · Accepted Answer

A deviation IQ score of 120 means that the cousin scored above the mean for her age group. In other words, her performance was better than that of most 10-year-olds who took the same test. However, it does not provide information about the number of questions she answered correctly, her percentile ranking or her relative standing among other age groups.

Larry Tells You That His Ten-Year-Old Cousin Recently Completed an Intelligence