Table 2.
Prevalence, Factor Loadings, IRT Parameters and Fit Statistics: Cocaine
| Cocaine Abuse (A) and Dependence (D) Criteria |
Prevalence (%) | Model With Legal Problems Criterion | Model Without Legal Problems Criterion | ||||
|---|---|---|---|---|---|---|---|
| Factor Loadings | Discrimination estimate a (SE) | Severity estimate b (SE) | Factor Loadings | Discrimination estimate a (SE) | Severity estimate b (SE) | ||
| Tolerance (D) | 19.38 | 0.868 | 2.09 (0.06) | 1.19 (0.04) | 0.870 | 2.10 (0.06) | 1.18 (0.04) |
| Withdrawal (D) | 21.48 | 0.917 | 2.21 (0.06) | 1.08 (0.04) | 0.917 | 2.22 (0.06) | 1.07 (0.04) |
| Larger/Longer (D) | 19.34 | 0.909 | 2.17 (0.06) | 1.15 (0.04) | 0.909 | 2.17 (0.06) | 1.15 (0.04) |
| Quit/Control (D) | 46.20 | 0.670 | 1.82 (0.05) | 0.11 (0.03) | 0.669 | 1.83 (0.05) | 0.11 (0.03) |
| Time spent (D) | 20.17 | 0.942 | 2.24 (0.07) | 1.10 (0.04) | 0.944 | 2.25 (0.07) | 1.09 (0.04) |
| Activities given up (D) | 16.02 | 0.921 | 2.19 (0.07) | 1.36 (0.04) | 0.922 | 2.20 (0.06) | 1.35 (0.04) |
| Physical/Psychological problems (D) | 22.63 | 0.933 | 2.24 (0.07) | 1.00 (0.04) | 0.935 | 2.26 (0.07) | 0.99 (0.04) |
| Neglect roles (A) | 15.94 | 0.891 | 2.13 (0.06) | 1.35 (0.04) | 0.888 | 2.12 (0.06) | 1.35 (0.04) |
| Hazardous use (A) | 33.39 | 0.749 | 1.90 (0.05) | 0.55 (0.03) | 0.747 | 1.91 (0.05) | 0.54 (0.03) |
| Social/Interpersonal problems (A) | 30.74 | 0.852 | 2.07 (0.06) | 0.65 (0.03) | 0.848 | 2.07 (0.06) | 0.64 (0.03) |
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| Legal problems (A) | 6.80 | 0.630 | 1.86 (0.05) | 2.20 (0.06) | |||
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| Comparative Fit Index (CFI) | 0.994 | 0.995 | |||||
| Tucker Lewis Index (TLI) | 0.993 | 0.993 | |||||
| Root mean squared error of approximation (RMSEA) | 0.049 | 0.051 | |||||
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| Bayesian Information Criterion (BIC) | 19827.24 | 18859.32 | |||||