Showing results of direct, indirect and total effect
| Direct effect | β | T stat | p-values | CIBaC | VIF | f2 |
|---|---|---|---|---|---|---|
| II → PICs | 0.559 | 11.637 | 0.000 | 0.526–0.732 | 1.000 | 0.626** |
| II → PP | −0.067 | 0.346 | 0.341 | −0.067–0.298 | 1.627 | 0.011 |
| II → MPPS | 0.374 | 6.355 | 0.000 | 0.167–0.486 | 1.000 | 0.096 |
| PICs → PP | 0.315 | 4.358 | 0.000 | 0.201–0.572 | 1.802 | 0.086 |
| MPPS → PP | 0.521 | 9.711 | 0.000 | 0.070–0.360 | 1.212 | 0.067 |
| Indirect effect | β | T stat | p-values | CIBaC | VAF | |
| II → PICs → PP | 0.176 | 3.974 | 0.000 | 0.125–0.392 | 57.89% | Full Mediation |
| II → MPPS → PP | 0.195 | 4.425 | 0.000 | 0.000–0.148 | 64.14% | Full Mediation |
| Total effect | β | T stat | p-values | CIBaC | ||
| II → PICs | 0.559 | 10.857 | 0.000 | 0.526–0.732 | ||
| II → PP | 0.304 | 4.237 | 0.000 | 0.287–0.554 | ||
| II → MPPS | 0.374 | 5.397 | 0.000 | 0.167–0.486 | ||
| PICs → PP | 0.315 | 4.358 | 0.000 | 0.201–0.572 | ||
| MPPS → PP | 0.521 | 9.711 | 0.000 | 0.070–0.360 | ||
| Prediction quality criteria | R2 | AdjR2 | Q² | RMSE | MAE | Q²_predict |
| PP | 0.502 | 0.493 | 0.404 | 0.967 | 0.772 | 0.074 |
| PICs | 0.313 | 0.309 | 0.303 | 0.841 | 0.628 | 0.302 |
| MPPS | 0.140 | 0.135 | 0.107 | 0.942 | 0.732 | 0.123 |
| β | CIBaC | VIF | f2 | |||
|---|---|---|---|---|---|---|
| 0.559 | 11.637 | 0.526–0.732 | 1.000 | 0.626** | ||
| −0.067 | 0.346 | −0.067–0.298 | 1.627 | 0.011 | ||
| 0.374 | 6.355 | 0.167–0.486 | 1.000 | 0.096 | ||
| 0.315 | 4.358 | 0.201–0.572 | 1.802 | 0.086 | ||
| 0.521 | 9.711 | 0.070–0.360 | 1.212 | 0.067 | ||
| CIBaC | VAF | |||||
| 0.176 | 3.974 | 0.125–0.392 | 57.89% | Full Mediation | ||
| 0.195 | 4.425 | 0.000–0.148 | 64.14% | Full Mediation | ||
| CIBaC | ||||||
| 0.559 | 10.857 | 0.526–0.732 | ||||
| 0.304 | 4.237 | 0.287–0.554 | ||||
| 0.374 | 5.397 | 0.167–0.486 | ||||
| 0.315 | 4.358 | 0.201–0.572 | ||||
| 0.521 | 9.711 | 0.070–0.360 | ||||
| Adj | ||||||
| 0.502 | 0.493 | 0.404 | 0.967 | 0.772 | 0.074 | |
| 0.313 | 0.309 | 0.303 | 0.841 | 0.628 | 0.302 | |
| 0.140 | 0.135 | 0.107 | 0.942 | 0.732 | 0.123 |
Notes:
Legend: II = information integration; PICs = procurement internal controls; PP = procurement performance; MPPS = materials and purchasing procedure standardization; **p < 0.001