Table 4. Mean scores ± SD of the four scales assessed in the two experimental designs.
| Known-Group Comparison | Simulation Design | |||||
|---|---|---|---|---|---|---|
| Suspected malingerers | Controls | Cohen’s d | Simulated malingerers | Controls | Cohen’s d | |
| SIMS | 20.4 ± 11.3* | 15.1 ± 11.9* | 0.43 | 37.5 ± 8.8* | 9.2 ± 5.8* | 3.80 |
| NIM | 5.2 ± 4.0 | 5.0 ± 4.9 | 0.04 | 13.8 ± 4.6* | 2.9 ± 2.9* | 2.83 |
| Fp | 5.2 ± 4.5 | 5.1 ± 3.7 | 0.02 | 9.7 ± 5.4* | 4.6 ± 2.1* | 1.24 |
| Fc | 8.2 ± 8.7 | 8.7 ± 6.7 | 0.06 | 18.5 ± 8.9* | 6.3 ± 4.4* | 1.74 |
Notes.
Asterisks indicate the presence of a statistically significant difference (p < 0.05) at the post-hoc analysis (Newman Keuls). For other abbreviations, see text. Cohen’s d measures the size of the effect. Values are considered as negligible (<0.20), small (0.20–0.49), medium (0.50–0.79), or large (≥0.80).