Table 2.
Results of the Mann–Whitney U tests comparing aggressive behavior and suicidality in good and poor sleepers
| Good sleepers (n=47)
|
Poor sleepers (n=46)
|
U | Z | P | r | |
|---|---|---|---|---|---|---|
| Median | Median | |||||
| Aggressive behavior | 17.00 | 17.00 | 1,087.500 | 0.051 | 0.960 | 0.005 |
| Suicidality | 2.00 | 5.00 | 1,554.00 | 3.667 | <0.001* | 0.380 |
Notes: U = the Mann–Whitney U test statistic; Z = the Mann–Whitney U test Z-score. P = significance; r = effect size. P is the two-tailed significance. *Significance level P<0.05.
Abbreviation: n, number.