Nonresponse bias test
| Analysis parameter | Information integration | Procurement internal controls | Materials and purchasing procedure standardization | Procurement performance | |
|---|---|---|---|---|---|
| Mann–Whitney U | 51.500 | 59.000 | 71.500 | 98.500 | |
| Wilcoxon W | 61.500 | 69.000 | 79.500 | 1,583.500 | |
| Z | −1.735 | −1.504 | −1.635 | −0.292 | |
| Asymp. sig. (two-tailed) | 0.083 | 0.133 | 0.069 | 0.771 | |
| Exact sig. [2 × (one-tailed sig.)] | 0.083b | 0.141b | 0.069b | 0.779b | |
| Analysis parameter | Information integration | Procurement internal controls | Materials and purchasing procedure standardization | Procurement performance | |
|---|---|---|---|---|---|
| 51.500 | 59.000 | 71.500 | 98.500 | ||
| 61.500 | 69.000 | 79.500 | 1,583.500 | ||
| −1.735 | −1.504 | −1.635 | −0.292 | ||
| 0.083 | 0.133 | 0.069 | 0.771 | ||
| 0.083b | 0.141b | 0.069b | 0.779b | ||
Notes:
aGrouping variable: Gender – mean; bNot corrected for ties