Discriminative validity showing differences of comprehension scores by participants’ demographic variables
| Rank sum | Expected | Significance | |
|---|---|---|---|
| Gender | |||
| Male (n=91) | 5765.5 | 11 284 | z=8.80, p<0.001 |
| Female (n=156) | 24 862.5 | 19 344 | |
| Domicile | |||
| Urban (n=129) | 7640.5 | 14 632 | z=−11.1, p<0.001 |
| Rural (n=118) | 22 987.5 | 15 996 | |
| Education status | |||
| Educated (n=62) | 9765 | 7688 | z=4.27, p<0.0001 |
| No western education (n=185) | 20 863 | 22 940 | |