Table 1.
Summary Statistics at High School and College
| Variable | Senior Year of High School |
First Semester of College |
d | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Possible Range | Observed Range | M | SD | α | Possible Range | Observed Range | M | SD | α | ||
| Trait risk factors | |||||||||||
| Sensation seeking | 0-11 | 0-11 | 5.56 | 2.69 | .73 | - | - | - | - | - | |
| Impulsivity | 0-8 | 0-8 | 2.07 | 2.00 | .73 | - | - | - | - | - | |
| PAC | 1-5 | 1-5 | 3.91 | 1.25 | .92 | 1-5 | 1-5 | 2.82 | 1.50 | .95 | -.78* |
| Weekly alcohol use | 0+ | 0-47 | 2.86 | 5.62 | - | 0+ | 0-77 | 5.12 | 8.19 | - | .30* |
| Percent abstaining | - | - | 48.28% | - | - | - | 38.42% | - | .20* | ||
| Alcohol-related problems | 0-92 | 0-43 | 1.85 | 4.27 | .90 | 0-92 | 0-65 | 2.75 | 5.62 | .91 | .18* |
| Had a bad time | - | - | 16.26% | - | - | - | 20.63% | - | .10* | ||
| Change in personality | - | - | 14.35% | - | - | - | 22.03% | - | .21* | ||
| Fights with friends | - | - | 10.65% | - | - | - | 10.20% | - | -.01 | ||
| Neglected responsibility | - | - | 10.26% | - | - | - | 18.27% | - | .21* | ||
Note. Trait risk factors were assessed in high school only. PAC=Perceived awareness and caring. Cohen's d is the standardized difference between the means. Prevalence rates are for the most common alcohol-related problems.
*
p < .001.