If an individual has a z-score of 2.0 on a performance test, this indicates this person's score is twice as high as the average test score.

Question

Quizplus · Accepted Answer

A z-score of 2.0 indicates that the person's score is two standard deviations above the mean score, not necessarily twice as high as the mean. The exact difference in score between the individual's performance and the average performance will depend on the specific distribution of test scores.

If an Individual Has a Z-Score of 2