The PI cognitive assessment is comprised of fifty numerical, verbal, and abstract reasoning questions that measure cognitive ability and your ability to solve problems. Your PI score depends on how many of these questions you can answer correctly in 12 minutes, and the number of answers you get right, 20/50 for example, is referred to as your raw score.
Your raw PI score is then compared to the scores of over 288,000 previous test takers who compose what's known as the norm group, or reference group. The Predictive Index cognitive assessment scoring is based on comparing your raw score with the scores of the norm group - providing your scaled score. The scaled score ranges from 100 to 450, and represents where your raw score ranks in percentile compared to the PI scores of the norm group.
The reason scaled scores are used in Predictive Index cognitive assessment scoring is that raw scores can't always be compared fairly between test takers, for instance a person with extended time won't gain an unfair advantage over someone who takes the fast-paced 12-minute version.
Another important aspect of Predictive Index cognitive assessment scoring is that unlike many cognitive ability tests, the scoring is criterion-based, not normative. This means that PI test scores are compared to preset criteria or minimum score required for a specific position, as opposed to comparing one candidate's score to the next one's.