Table 3.
BRIEF T-score and Performance-Based EF Measure Means and Intercorrelations
| M (SD) | Range (Min. – Max) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.Emotion Control | 51.76 (11.85) | 34 - 82 | - | ||||||||||||
| 2.Inhibition | 51.89 (10.11) | 36 – 74 | .45** | - | |||||||||||
| 3.Shift | 51.59 (10.65) | 34 – 79 | .49** | .60** | - | ||||||||||
| 4.Monitor | 49.98 (9.55) | 37 – 66 | .47** | .63** | .49** | - | |||||||||
| 5.Working Memory | 51.46 (9.88) | 34 – 72 | .47** | .73** | .61** | .56** | - | ||||||||
| 6.Plan/Organization | 49.93 (10.60) | 33 – 73 | .58** | .64** | .61** | .50** | .79** | - | |||||||
| 7.Task | 50.89 (10.87) | 35 – 77 | .41** | .51** | .50** | .37* | .69** | .76** | - | ||||||
| 8.Organization of Materials | 51.96 (10.23) | 36 – 75 | .34* | .57** | .58** | .35* | .70** | .72** | .67** | - | |||||
| 9.BRI | 51.50 (10.29) | 33 – 75 | .79** | .83** | .81** | .73** | .76** | .77** | .60** | .58** | - | ||||
| 10.MI | 51.11 (10.88) | 32 – 76 | .51** | .69** | .65** | .51** | .90** | .93** | .86** | .86** | .77** | - | |||
| 11.GEC | 51.33 (10.75) | 32 – 74 | .67** | .80** | .77** | .64** | .89** | .91** | .78** | .79** | .92** | .95** | - | ||
| 12. TMT | 29.50 (11.83) | 12.64 – 65.07 | .04 | .24 | .09 | .23 | .16 | .06 | .17 | .14 | .16 | .15 | .16 | - | |
| 13. BDS | 6.91 (2.23) | 4.00 – 13.00 | −.07 | .12 | −.07 | .21 | .10 | .10 | .16 | .17 | .03 | .13 | .09 | −.34* | - |
Note. BRI = Behavioral regulation index; MI = Metacognitive index; GEC = Global executive composite. TMT = Trail Making Test. BDS = Backwards Digit Span. Higher scores on the BRIEF are indicative of greater self-reported cognitive difficulties. TMT scores (n = 46) were obtained by subtracting Trail Making Test-A from Trail Making Test-B with high scores indicating more difficulty with task switching. Lower BDS scores (n = 46) indicated a shorter working memory span, or worse performance.
*
p < .05.
**
p< .01.