| Model Equation No. 2 | Unstandardized Coefficients | Standardized Coefficients | t | Sig. | |
| B | Std. Error | Beta | |||
| (Constant) | −37.111 | 77.201 |
| −0.481 | 0.656 |
| Coupling | 3.973 | 72.513 | 0.009 | 0.055 | 0.959 |
| Inheritance | 32.500 | 7.395 | 1.017 | 4.395 | 0.012 |
| Encapsulation | 20.709 | 84.225 | 0.056 | 0.246 | 0.818 |