Table 1.
Mean Scores (and Standard Deviations) for CBCL scales by Chronotype
| Variable | Chronotype |
p valueb | |
|---|---|---|---|
| Morning (n = 40) | Evening (n = 40) | ||
| CBCL Competence scalesa | |||
| Activities scale | 53.50 (9.37) | 50.05 (9.05) | ns |
| Social scale | 51.83 (9.36) | 47.13 (9.16) | * |
| School scale | 50.85 (5.34) | 47.38 (8.33) | * |
| Total Competence scale | 53.93 (9.94) | 47.65 (9.81) | ** |
| CBCL Syndrome scalesa | |||
| Anxious/Depressed scale | 55.48 (6.33) | 56.63 (7.24) | ns |
| Withdrawn/Depressed scale | 54.83 (5.69) | 54.48 (5.88) | ns |
| Somatic Complaints scale | 54.98 (6.02) | 55.83 (6.08) | ns |
| Social Problems scale | 54.85 (5.97) | 54.93 (6.51) | ns |
| Thought Problems scale | 54.83 (5.96) | 56.80 (7.12) | ns |
| Attention Problems scale | 53.88 (4.33) | 57.58 (8.55) | * |
| Rule-Breaking Behavior scale | 52.23 (2.61) | 54.00 (5.73) | ns |
| Aggressive Behavior scale | 52.30 (3.82) | 55.53 (7.57) | * |
| Internalizing grouping | 51.98 (10.00) | 52.90 (10.10) | ns |
| Externalizing grouping | 47.03 (8.11) | 50.38 (10.96) | ns |
| Total Problems Score | 49.00 (9.55) | 52.23 (10.68) | ns |
Note: ns = not significant.
a
All reported means are based on CBCL T-scores (Achenbach & Rescorla, 2001).
b
Independent samples t—tests.
*
p < .05.
**
p < .01.