Factors

Sum of squares

Degrees of freedom

Mean square

F

Salience

Poor information processing ability

Between groups

10.113

10

1.011

0.938

0.498

intragroup

281.295

261

1.078

Total

291.408

271

Design work ignores buildability

Between groups

26.110

10

2.611

2.590

0.005

intragroup

263.169

261

1.008

Total

289.279

271

Security incident

Between groups

36.268

10

3.627

1.613

0.103

intragroup

586.967

261

2.249

Total

623.235

271

Too much intervention by the owner

Between groups

22.875

10

2.287

2.434

0.009

intragroup

245.298

261

0.940

Total

268.173

271

Use of new technologies, new materials and new processes in construction

Between groups

12.016

10

1.202

0.961

0.478

intragroup

326.205

261

1.250

Total

338.221

271

Uncertainty and changes in the surrounding environment

Between groups

18.739

10

1.874

1.819

0.058

intragroup

268.894

261

1.030

Total

287.632

271