| Variables | Job Involvement | |||
| Model 1 | Model 2 | Model 3 | Model 4 | |
| β | β | β | β | |
| Gender | −0.009 | 0.862 | 0.010 | 0.012 |
| Education | 0.034 | 0.562 | 0.004 | 0.013 |
| Marital Status | 0.226*** | 0.001 | 0.189*** | 0.125* |
| Working Years | −0.162** | 0.002 | −0.139* | −0.122* |
| Industry | −0.029 | 0.094 | −0.025 | 0.063 |
| Company’s Size | −0.033 | 0.192 | −0.052 | 0.046 |
| Percentage of Performance Based Salary | 0.149** | 0.337 | 0.115 | 0.029 |
| Pay Dispersion |
|
| −0.208*** | −0.064 |
| Perception of Justice |
| 0.588*** |
| 0.573*** |
| R2 | 0.038 | 0.073 | 0.281 | 0.316 |
| ∆R2 | - | 0.035*** | 0.208*** | 0.035*** |