. 2008 Sep;69(5):684–694. doi: 10.15288/jsad.2008.69.684

TABLE 6.

Raw external variables by cluster in the exploratory and replication samples

Variable	Exploratory sample (n = 393)				Replication sample (n = 289)
Variable
	“Why Me?” (n = 115; 29.3%)	“So What?” (n = 97; 24.7%)	“Bad Incident” (n = 181; 46.1%)	Statistic	“Why Me?” (n = 150; 51.9%)	“So What?” (n = 85; 29.4%)	“Bad Incident” (n = 54; 18.7%)	Statistic
Age, Mean (SD)	19.1 (0.84)^a	19.1 (1.01)^a	18.8 (0.89)^a	F = 3.83, ^* 2/390 df	18.7 (0.81)	18.8 (0.94)	18.5 (0.91)	F = 1.91, 2/286 df
% Male	49^a	66^b	41^a	x² = 15.27, ^‡ 2 df	59^a	75^b	67^b	x² = 6.67, ^* 2 df
% Freshman	46^a	53^a	68^b	x² = 33.87, ^‡ 6 df	67	64	80	x² = 9.26, 6 df
Violation type
Presence	43 (37%)	6 (6%)	4 (2%)	x² = 240.06, ^‡ 6 df	14 (9%)	3 (4%)	0(0%)	x² = 71.39, ^‡ 6 df
Possession	55 (48%)	59 (61%)	12 (7%)		131 (87%)	77 (91%)	31 (57%)
Behavior	3 (3%)	10 (10%)	11 (6%)		4 (3%)	4 (5%)	13 (24%)
Medical	14 (12%)	22 (23%)	154 (85%)		1 (1%)	1 (1%)	10 (19%)
No of drinking days, past month	5.30 (3.32)^a	11.05 (4.03)^b	4.55 (2.76)^a	F = 135.72, ^‡ 2/388 df	7.74 (3.73)^a	14.02 (5.21)^b	9.40 (5.05)^a	F = 53.98, ^‡ 2/286 df
Drinks per Drinking day, past month	5.09 (3.06)^a	8.02 (2.77)^b	4.78 (2.79)^a	F = 41.22, ^‡ 2/368 df	5.58 (2.44)^a	8.42 (2.55)^b	7.32 (2.95)^c	F = 34.59, ^‡ 2/285 df
No. of days used cigarettes, past month	2.25 (6.69)^a	5.06 (9.50)^b	3.28 (7.85)^a^,b	F = 3.29, ^* 2/389 df	5.53 (10.07)	8.14 (11.17)	5.54 (11.15)	F = 1.81, 2/286 df
No of days used Marijuana, past month	1.32 (4.29)^a	3.45 (5.23)^b	1.44 (2.85)^a	F = 9.84, ^‡ 2/388 df	2.04 (5.33)^a	7.13 (9.88)^b	3.26 (6.39)^a	F = 13.57, ^‡ 2/286 df

Notes: Different superscripts indicate clusters that are significantly different from other clusters in the same sample at p < .05.

p < .05;

^‡

p < .001.