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Distribution of WISC-PIQ scores in the CI-HS sample compared to test norms (NS-TD)
| PIQ | CI-HS | NS-TD | |
|---|---|---|---|
| <-2 SD | ≤70 | 3.6% | 2% |
| -1 to -2 SD | 71-85 | 10.8% | 14% |
| -1 SD to 0 | 86-100 | 31.2% | 34% |
| 0 to +1 SD | 101-115 | 31.2% | 34% |
| +1 to +2 SD | 116-130 | 19.6% | 14% |
| >+3 SD | >130 | 3.6% | 2% |
