Table 1.

Factor loadings with 95% confidence intervals, threshold, discrimination and difficulty parameters from one-factor Mx marginal maximum likelihood analysis of 10 alcohol dependence, abuse, and weekly “binge” drinking criteria in 353 undergraduate students, 2007

			Factor loading Two-factor model
Alcohol criteria	Prevalence n (%)	Factor loading One-factor model [95% CI]	Factor 1	Factor 2	Discrim.	Severity
Tolerance	161 (45.6)	.83 [.73, .90]	.759	.284	1.461	0.127
Withdrawal	25(7.1)	.55 [.36, .71]	.460	.350	0.661	2.667
Larger/longer	123 (34.8)	.76 [.66, .84]	.813	.041	1.164	0.509
Quit/cut down	34 (9.6)	.76 [.63, .86]	.738	.250	1.182	1.701
Time spent drinking	51 (14.4)	.86 [.77, .92]	.892	.166	1.694	1.222
Activities reduced	22 (6.2)	.78 [.64, .88]	.666	.468	1.249	1.963
Use despite problems	50(14.2)	.85 [.75, .91]	.726	.498	1.594	1.245
Neglect responsibility	66(18.7)	.65 [.52, .76]	.637	.207	0.864	1.328
Hazardous use	46(13.0)	.58 [.42, .71]	.470	.411	0.708	1.906
Social/legal problems	22 (6.2)	.86 [.72, .99]	.630	.675	1.683	1.805
“Binge” drinking	158(44.8)	.58 [.46, .68]	.700	−.147	0.711	0.226
Fit statistics
−2 LLa		2,798.1	2,775.2
AIC		−5,083.9	−5,084.8
BIC		−10,205.0	−10,184.1

Notes: Discrim. = discrimination. LL = log likelihood; AIC = Akaike Information Criterion; BIC = Bayesian Information Criterion.

^aLikelihood ratio test: χ²(10) = 22.97, p = .01.