| Model | Unstandardized Coefficients | Standardized Coefficients | t | Sig. | |
| B | Std. Error | Beta | |||
| (Constant) | 1.689 | 0.342 |
| 4.939 | 0.013 |
| Competitive Bidding (X1) | 0.534 | 0.065 | 0.448 | 8.215 | 0.028 |
| Gifts (X2) | 0.409 | 0.076 | 0.087 | 5.382 | 0.036 |
| Conflict of Interest (X3) | 0.493 | 0.107 | 0.198 | 4.607 | 0.032 |
| Negotiation (X4) | 0.507 | 0.097 | 0.243 | 5.227 | 0.039 |
| Reciprocity (X5) | 0.424 | 0.171 | 0.05 | 2.376 | 0.021 |
| Sharp Practices (X6) | 0.413 | 0.156 | 0.061 | 2.647 | 0.011 |
| Personal Buying (X7) | 0.512 | 0.154 | 0.201 | 3.325 | 0.018 |
| Confidentiality (X8) | 0.803 | 0.275 | 0.256 | 2.920 | 0.031 |