Dynamic score converter.
Percentile: 50% of scores fall below this point
Z-Score: 0 standard deviations from the mean
Performance classification.
Standard Score
Average (85-114) - Within normal range (16th-83rd percentile)
Scaled Score
Average (8-12) - Typical performance range for age group
Percentile
Average (16th-83rd percentile) - Performs similarly to the majority of same-age peers
Z-Score
Average (-0.9 to +0.9) - Within 1 standard deviation of the mean
T-Score
Average (40-59) - Within normal range (16th-83rd percentile equivalent)