Raw Score: A raw score represents an individual's actual score without any adjustment or transformation.
Z-Score: A z-score indicates how many standard deviations above or below the mean an individual's score falls within a distribution.
Percentile Rank: Percentile rank compares an individual's score with those of others and expresses it as a percentage. For example, if you scored higher than 80% of people who took the same test, your percentile rank would be 80.