Table 4 .
Breadth of coverage for psychological trauma variable-length CAT, fixed-length CAT, 8-item short form, and full item bank
| Mode | N | T-Score |
Standard error |
||||
|---|---|---|---|---|---|---|---|
| Mean±SD | Range | % Ceiling | % Floor | Mean±SD | Range | ||
| Variable-length CAT (min 4) | 716 | 50.03 ± 9.22 | 33.85–76.70 | 0.14 | 8.94 | 0.359 ± 0.099 | 0.280–0.597 |
| Variable-length CAT (min 8) | 716 | 50.02 ± 9.22 | 33.85–76.70 | 0.14 | 8.94 | 0.354 ± 0.103 | 0.246–0.597 |
| 8-Item fixed-length CAT | 716 | 50.12 ± 9.01 | 35.39–79.08 | 0.14 | 11.73 | 0.382 ± 0.114 | 0.246–0.616 |
| 8-Item short form | 716 | 50.13 ± 8.75 | 38.40–78.00 | 0.14 | 21.09 | 0.412 ± 0.124 | 0.260–0.620 |
| Full bank | 716 | 49.98 ± 9.43 | 33.10–76.70 | 0.14 | 8.66 | 0.312 ± 0.113 | 0.190–0.580 |