Table 5.
Descriptive Statistics for Performance Tasks and Reactivity Categories and Effect Size.
| Low
|
Moderate
|
High
|
d | ||||
|---|---|---|---|---|---|---|---|
| M | SD | M | SD | M | SD | ||
| Working memory for numbers | 4.33 | 1.65 | 3.66 | 1.40 | 3.14* | 1.98 | −0.66 |
| Working memory for words | 2.62 | 1.28 | 2.37 | 1.47 | 1.57* | 1.25 | −0.88 |
| Digit span forward | 7.33 | 1.46 | 7.44 | 1.71 | 7.38 | 2.20 | 0.02 |
| Digit span backward | 4.95 | 1.02 | 4.78 | 1.73 | 5.14 | 1.59 | 0.14 |
| Rapid number naming | 16.52 | 4.57 | 16.54 | 5.78 | 16.05 | 5.01 | 0.09 |
| Rapid picture naming | 107.52 | 10.58 | 102.22 | 12.81 | 98.71 | 18.61 | −0.57 |
| Letter number sequence | 9.19 | 2.92 | 8.46 | 2.89 | 7.86 | 3.79 | −0.38 |
| Quantitative concepts | 108.10 | 15.01 | 101.85 | 13.10 | 99.95 | 13.88 | −0.55 |
| Block rotation | 102.10 | 15.45 | 103.15 | 17.55 | 100.71 | 19.03 | 0.08 |
Note: d is standardized mean difference for the high to low reactivity categories.
*
p < .05.