| Factors | Sum of squares | Degrees of freedom | Mean square | F | Salience | |
| Poor information processing ability | Between groups | 1.292 | 4 | 0.323 | 0.297 | 0.880 |
| Intragroup | 290.116 | 267 | 1.087 | |||
| Total | 291.408 | 271 | ||||
| Design work ignores buildability | Between groups | 7.823 | 4 | 1.956 | 1.855 | 0.119 |
| Intragroup | 281.457 | 267 | 1.054 | |||
| Total | 289.279 | 271 | ||||
| Security incident | Between groups | 6.530 | 4 | 1.633 | 0.707 | 0.588 |
| Intragroup | 616.705 | 267 | 2.310 | |||
| Total | 623.235 | 271 | ||||
| Too much intervention by the owner | Between groups | 12.857 | 4 | 3.214 | 3.361 | 0.010 |
| Intragroup | 255.316 | 267 | 0.956 | |||
| Total | 268.173 | 271 | ||||
| Use of new technologies, new materials and new processes in construction | Between groups | 6.066 | 4 | 1.516 | 1.219 | 0.303 |
| Intragroup | 332.155 | 267 | 1.244 | |||
| Total | 338.221 | 271 | ||||
| Uncertainty and changes in the surrounding environment | Between groups | 4.600 | 4 | 1.150 | 1.085 | 0.364 |
| Intragroup | 283.032 | 267 | 1.060 | |||
| Total | 287.632 | 271 | ||||