Standard Score Groups
Level | Standard Score | Explanation |
1 | Z =>0 | Good performance: at or above average compared to the normative database |
2 | -.82 5<= Z < 0 | Standard performance: slightly below average compared to the normative database but still within typical range |
3 | -1.65<Z<=.825 | Weak performance: moderately below average compared to the normative database |
4 | -1.65>= Z | Difficulty in performance: significantly below average compared to the normative database signaling likelihood of attention difficulties |
Level | Standard Score | Explanation |
1 | -1.95< Z ≤-1.65 | Low |
2 | -2.25< Z ≤-1.95 | Medium |
3 | -2.55< Z ≤-2.25 | High |
4 | -2.55 ≥Z | Extreme |