Table 2 Mean scores (SD) of the log GHQ-12 Likert score, effort score, reward score and ERI ratio by the degree of NA influence across 10,000 simulated populations
From: Effort, reward and self-reported mental health: a simulation study on negative affectivity bias
| Â | Â | Percentage of items affected by NA | ||||
|---|---|---|---|---|---|---|
Mean scores (SD) across 10,000 simulated populations | Percentage of subjects with NA | 0% | 10% | 20% | 30% | 40% |
Log GHQ12 Likert Score a | 5 | 2.29(0.20) | 2.29(0.21) | 2.30(0.21) | 2.30(0.21) | 2.31(0.22) |
| Â | 10 | 2.29(0.20) | 2.30(0.21) | 2.31(0.21) | 2.32(0.22) | 2.32(0.23) |
| Â | 20 | 2.29(0.20) | 2.31(0.21) | 2.33(0.22) | 2.35(0.24) | 2.36(0.25) |
Effort score (Siegrist) b | 5 | 12.5(1.9) | 12.5(1.9) | 12.5(1.9) | 12.6(2.0) | 12.6(2.0) |
| Â | 10 | 12.5(1.9) | 12.5(1.9) | 12.6(2.0) | 12.6(2.0) | 12.7(2.1) |
| Â | 20 | 12.5(1.9) | 12.6(1.9) | 12.7(2.0) | 12.8(2.1) | 12.9(2.2) |
Reward score (Siegrist) c | 5 | 48.1(3.2) | 48.0(3.3) | 48.0(3.3) | 47.9(3.3) | 47.8(3.4) |
| Â | 10 | 48.1(3.2) | 48.0(3.3) | 47.8(3.3) | 47.7(3.4) | 47.6(3.5) |
| Â | 20 | 48.1(3.2) | 47.8(3.3) | 47.6(3.4) | 47.4(3.5) | 47.2(3.7) |
Effort-reward Imbalance ratio (Siegrist) | 5 | 0.478(0.081) | 0.480(0.081) | 0.481(0.083) | 0.483(0.085) | 0.485(0.088) |
| Â | 10 | 0.478(0.081) | 0.481(0.082) | 0.485(0.085) | 0.489(0.089) | 0.493(0.095) |
| Â | 20 | 0.478(0.081) | 0.485(0.084) | 0.492(0.089) | 0.500(0.096) | 0.508(0.105) |