Table 1.
Descriptive Statistics of Drinking and Personality Traits at each Wave
|
Wave |
Time point |
N |
% Total N |
Mean Age (SD) |
Mean Number of Binge Drinking Episodes (SD) |
ZK Impulsivity (SD) |
Sensation Seeking (SD) |
|---|---|---|---|---|---|---|---|
| 1 | Summer 2004 | 2,245 | 100% | 18.4 (.35) | 2.16 (5.41) | 2.07 (2.01) | 5.58 (2.69) |
| 2 | Fall 2004 | 2,077 | 92.5% | 18.8 (.35) | 2.92 (6.22) | ||
| 3 | Spring 2005 | 2,026 | 90.2% | 19.2 (.35) | 3.51 (7.19) | ||
| 4 | Fall 2005 | 1,896 | 88.5% | 19.8 (.35) | 3.75 (6.96) | ||
| 5 | Spring 2006 | 1,790 | 79.7% | 20.2 (.35) | 3.50 (6.99) | ||
| 6 | Fall 2006 | 1,675 | 74.6% | 20.8 (.36) | 3.82 (7.29) | ||
| 7 | Spring 2007 | 1,639 | 73.0% | 21.2 (.35) | 4.24 (7.50) | ||
| 8 | Fall 2007 | 1,539 | 68.6% | 21.8 (.35) | 4.13 (7.26) | 1.82 (1.99) | 5.29 (3.05) |
| 9 | Fall 2008 | 1,429 | 63.7% | 22.8 (.35) | 3.51 (6.42) | ||
| 10 | Fall 2009 | 1,407 | 62.7% | 23.8 (.35) | 3.31 (6.55) | 1.79 (2.03) | 5.31 (3.13) |