Table 1 Interpretive guideline for Conners’ T scores and percentiles
T score | Percentile | Guideline |
|---|---|---|
70+ | 98+ | Markedly atypical (significant problem) |
66–70 | 95–98 | Moderately atypical (significant problem) |
61–65 | 86–94 | Mildly atypical (possible problem) |
56–60 | 74–85 | Slightly atypical (borderline) |
< 30–55 | < 2–73 | Average (typical: should not raise concern) |