Table 4: Non-parametric test values for test D, E and F regarding group1 (bring my own lunch) and group 3 (sometimes go hungry).
** = Statistically significant at the 1% level (p<0.01) Effect size – r = 0.10 - 0.29 small; r = 0.30 - 0.49; moderate; r = 0.5+ large.
| Percentages of sound texts correct (D) | Percentages of the correct word (E) | Percentages of most likely real word-Word choice 2 (F) |
| Mann-Whitney U | 221.500 | 222.500 | 271.000 |
| Wilcoxon W | 299.500 | 300.500 | 349.000 |
| Z | -3.423 | -3.430 | -2.958 |
| Sig. (2-tailed) | .001 | .001 | .003 |
| Effect size | 0.33 | 0.33 | 0.29 |
| a. Grouping Variable: A20. Where does your lunch at school come from? |