Magnitude of Construction Cost and Schedule Overruns in Public Work Projects

Table 6

Test of homogeneity.

Metrics	Levene’s statistic	Significance
Factor: project types
Construction cost overrun	3.117	0.045
Construction schedule overrun	0.175	0.840
Factor: project size
Construction cost overrun	1.819	0.164
Construction schedule overrun	12.203	<0.001**
Factor: project construction duration
Construction cost overrun	2.871	0.091
Construction schedule overrun	11.174	0.001**
Factor: project completion year
Construction cost overrun	0.781	0.377
Construction schedule overrun	10.756	0.001**

∗Statistically significant at alpha level 0.05.
∗∗Statistically significant at alpha level 0.01.