Table 2.
First-Order | ||||||
---|---|---|---|---|---|---|
Present Data (N = 691) | Stanford et al. (2009; N = 1,577) | |||||
Sub-Scale | Mean | SD | Alpha | Mean | SD | Alpha |
ATT | 9.2 | 2.4 | .65 | 10.4 | 2.9 | .72 |
CI | 5.3 | 1.7 | .54 | 6.4 | 1.9 | .55 |
MOT | 13.8 | 3.1 | .61 | 15.0 | 3.2 | .64 |
PER | 7.6 | 1.9 | .32 | 6.9 | 1.8 | .27 |
CC | 12.0 | 3.0 | .65 | 11.5 | 2.6 | .48 |
SC | 11.2 | 2.5 | .40 | 12.1 | 3.3 | .72 |
Second-Order | ||||||
Sub-Scale | Present Data | Stanford et al. | ||||
ATT | 14.4 | 3.5 | .70 | 16.7 | 4.1 | .74 |
MOT | 21.5 | 4.0 | .60 | 22.0 | 4.0 | .59 |
NP | 23.3 | 4.6 | .67 | 23.6 | 4.9 | .72 |
aFirst-Order | ||||||
Sub-Scale | ATT | CI | MOT | PER | CC | SC |
ATT | - | .41 | .34 | .25 | .36 | .51 |
CI | .39 | - | .27 | .08 | .02 | .22 |
MOT | .28 | .35 | - | .19 | .27 | .41 |
PER | .23 | .26 | .24 | - | .30 | .31 |
CC | .47 | .22 | .37 | .38 | - | .39 |
SC | .30 | .03 | .21 | .29 | .41 | - |
aSecond-Order | ||||||
Sub-Scale | ATT | MOT | NP | |||
ATT | - | .39 | .45 | |||
MOT | .42 | - | .50 | |||
NP | .40 | .47 | - |
Note. Correlations below the diagonal are the present results; correlations above the diagonal are from Stanford et al. (2009). ATT = Attention; CI = Cognitive Instability; MOT = Motor; PER = Perseverance; CC = Cognitive Complexity; SC = Self-Control; NP = Non-Planning; SD = Standard Deviation.