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Descriptive statistics of working memory span in high and low WMS groups.
| Group | N | M | SD |
| High-WMS | 36 | 54.47 | 3.19 |
| Low-WMS | 36 | 44.08 | 3.61 |
In the independent sample t-test, t (70) = −12.93, p < 0.001, and d = 0.36. This indicates that the difference between the high and low WMS groups is significant and the classification is effective in this experiment.
