An Empirical Study of Software Metrics Diversity for Cross-Project Defect Prediction

Table 4

The results of the Wilcoxon signed-rank test and Cliff’s effect size ().

	Process vs. semantic	Structure vs. semantic	CK-OO vs. semantic	Structure vs. process	CK-OO vs. process	CK-OO vs. semantic
Sig. value (0.05)	0.022	0.49	0.003	0.024	0.5	0.018
value	−0.445	−0.083	−0.408	0.295	0.00	−0.295