| Factors | Sum of squares | Degrees of freedom | Mean square | F | Salience | |
| Poor information processing ability | Between groups | 0.811 | 1.000 | 0.811 | 0.753 | 0.386 |
| Intragroup | 290.597 | 270.000 | 1.076 | |||
| Total | 291.408 | 271.000 | ||||
| Design work ignores buildability | Between groups | 0.035 | 1.000 | 0.035 | 0.033 | 0.856 |
| Intragroup | 289.244 | 270.000 | 1.071 | |||
| Total | 289.279 | 271.000 | ||||
| Security incident | Between groups | 2.718 | 1.000 | 2.718 | 1.183 | 0.278 |
| Intragroup | 620.517 | 270.000 | 2.298 | |||
| Total | 623.235 | 271.000 | ||||
| Too much intervention by the owner | Between groups | 8.835 | 1.000 | 8.835 | 9.198 | 0.003 |
| Intragroup | 259.338 | 270.000 | 0.961 | |||
| Total | 268.173 | 271.000 | ||||
| Use of new technologies, new materials and new processes in construction | Between groups | 1.467 | 1.000 | 1.467 | 1.176 | 0.279 |
| Intragroup | 336.754 | 270.000 | 1.247 | |||
| Total | 338.221 | 271.000 | ||||
| Uncertainty and changes in the surrounding environment | Between groups | 1.344 | 1.000 | 1.344 | 1.267 | 0.261 |
| Intragroup | 286.289 | 270.000 | 1.060 | |||
| Total | 287.632 | 271.000 | ||||