TABLE 2.
Values for clustering variables for each sample
| Variable | Exploratory sample | Replication sample | Statistics | ||
| Project 1 (n = 225) | Project 2 (n = 38) | Project 3 (n = 130) | Project 4 (n = 289) | ||
| Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | ||
| No of heavy drinking days, past month | 2.91a (3.12) | 7.16b,c (5.39) | 5.08b (3.86) | 7.98c (5.01) | F = 61.27, ‡ 3/676 df |
| Alcohol problems, past year | 5.69a (2.96) | 8.11b (3.86) | 7.65b (3.94) | 12.44c (8.16) | F = 17.99, ‡ 2/390 df |
| Standard drinks in incident | 8.93a (5.47) | 3.49b (4.86) | 4.01b (4.23) | 7.09c (5.18) | F = 31.59, ‡ 3/677 df |
| Responsibility | 16.86a (4.21) | 13.76b (4.42) | 10.06b (5.12) | 11.81b (5.17) | F = 69.23, ‡ 3/675 df |
| Aversivences | 12.30a (4.62) | 9.41b,c (4.94) | 10.89a,b (4.25) | 9.40c (4.64) | F = 17.94, ‡ 3/676 df |
Notes: Alcohol problems were measured using the Young Adult Alcohol Problems Screening Test (scores range from 0 to 27) for the exploratory sample and the Young Adult Alcohol Consequences Questionnaire (range 0-42) in the replication sample. Original values are presented for descriptive purposes; inferential statistics were conducted using the original values. Scheffé pairwise comparisons were conducted between all projects, except for alcohol problems because of a measurement difference for this variable between theexploratory and replication samples (the omnibus statistic for alcohol problems is for the exploratory sample only). Different superscripts in each row indicate group means differed significantly at p < .05.
p < .001.