Table 3.

Stability of AUD criteria and their relationship with dependence and abuse symptom counts

		Stability Measures			Correlations
Wave 1		Kappa/ product- moment correlation	PPV	Tetrachoric	Abuse Total Wave 2	Dependence Total Wave 2	AUD Total Wave 2
Dependence
(r̅ = .36)	Tolerance	.21	.29	.54	.20	.29	.29
	CutDown	.30	.43	.60	.19	.32	.31
	Larger/Longer	.30	.43	.60	.23	.33	.34
	Withdrawal	.33	.40	.66	.24	.35	.35
	GiveUp	.23	.24	.83	.23	.23	.25
	TimeDrinking	.24	.27	.73	.23	.28	.29
	Continued	.28	.35	.70	.24	.32	.32
	Total(α=.77)a				.33	.46	.46
Abuse
(r̅ = .28)	RoleInterference	.26	.28	.84	.23	.24	.26
	Hazardous	.31	.36	.63	.30	.25	.29
	LegalProblems	.06	.06	.63	.15	.16	.17
	Interpersonal	.21	.18	.76	.25	.28	.30
	Total(α=.50)b				.36	.34	.38
AUD	Total(α=.80)				.37	.47	.48

Note. PPV = positive predictive value. In this instance, Kappa and the product-moment correlation are equivalent when the marginal distributions of the agreement table are homogeneous, or nearly so, as in this case (for details, see Cohen, 1961). r̅ = the average inter-item correlation for each set of criteria. CutDown = Persistent desire or unsuccessful efforts to cut down or control drinking. Larger/Longer = Drinking larger amounts or for longer periods than intended. GiveUp = Giving up or reducing important social, occupational or recreational activities in favor of drinking. TimeDrinking = A great deal of time spent in activities to obtain alcohol to drink, or to recover from its effects. Continued = Continued drinking despite knowledge of a physical or psychological problem caused or exacerbated by drinking. RoleInterference = Failure to fulfill major role obligations at work/school/home. Hazardous = Use in hazardous situations. LegalProblems = Legal problems related to drinking. Interpersonal = Social or interpersonal problems.

^aα corresponds to a mean inter-item correlation of .36.

^bα corresponds to a mean inter-item correlation of .28.