Table 4.

Item-Test Correlation Coefficient Estimates for DSM-IV Inhalant Use-related Criteria and Diagnoses

	All	Non-nitrites	DSM	Aerosols	Gases	Solvents
Abuse Criteria:
A: Role failure	0.35	0.38	0.38	0.34	0.52	0.24
A: Hazardous use	0.23	0.21	0.28	0.08	0.25	0.23
A: Law problems A:	0.30	0.25	NA	NA	0.34	NA
Social problems	0.35	0.31	0.24	0.20	0.38	0.19
Dependence Criteria:
D: Tolerance	0.18	0.21	0.21	0.13	0.19	0.18
D: Withdrawal	0.32	0.28	0.27	0.14	0.25	0.25
D: More than planned	0.46	0.46	0.46	0.50	0.42	0.29
D: Failure to control	0.26	0.25	0.19	0.33	0.21	0.02
D: Requires much time	0.48	0.44	0.36	0.33	0.45	0.32
D: Activities reduced	0.14	0.15	0.13	NA	0.16	0.21
D: Phys/psych problem	0.25	0.28	0.32	0.32	0.17	0.20
All Criteria:
A: Role failure	0.42	0.42	0.39	0.41	0.51	0.36
A: Hazardous use	0.38	0.35	0.36	0.20	0.41	0.41
A: Law problems	0.27	0.21	NA	NA	0.28	NA
A: Social problems	0.45	0.41	0.27	0.17	0.42	0.23
D: Tolerance	0.21	0.23	0.23	0.19	0.20	0.15
D: Withdrawal	0.39	0.32	0.32	0.32	0.30	0.23
D: More than planned	0.50	0.51	0.52	0.40	0.45	0.48
D: Failure to control	0.34	0.31	0.19	0.30	0.31	0.10
D: Requires much time	0.51	0.49	0.37	0.40	0.50	0.37
D: Activities reduced	0.25	0.26	0.20	NA	0.32	0.30
D: Phys/psych problem	0.23	0.24	0.28	0.26	0.18	0.18
Number of Users	162	160	101	75	142	59

Note: Item-total correlations reflect how closely a criterion aligns with the overall count of the group of criteria. Such estimates are commonly computed for psychometric evaluations of instruments. ). “A” indicates a DSM-IV abuse criterion. “D” indicates a DSM-IV dependence criterion.