Table 6.
Rasch analyses of the 11 modified YFAS2 (mYFAS2) diagnostic criteria
| Diagnostic criteria | Measure | SE | Infit | Outfit | |||||
|---|---|---|---|---|---|---|---|---|---|
| MnSq | Zstd | MnSq | Zstd | ||||||
| Substance taken in larger amount and for longer period than intended (#3) | 0.71 | 0.14 | 1.13 | 1.5 | 2.29 | 5.1 | |||
| Persistent desire or repeated unsuccessful attempts to quit (#32) | 1.32 | 0.16 | 1.22 | 2.1 | 2.97 | 5.1 | |||
| Much time/activity to obtain, use, recover (#5) | 2.16 | 0.18 | 1.09 | 0.8 | 1.33 | 0.8 | |||
| Important social, occupational, or recreational activities given up or reduced (#10) | − 2.26 | 0.12 | 0.96 | − 0.7 | 1.23 | 1.1 | |||
| Use continues despite knowledge of adverse consequences (e.g., emotional problems, physical problems) (#22) | 0.53 | 0.14 | 0.92 | − 0.9 | 1.20 | 1.1 | |||
| Tolerance (marked increase in amount; marked decrease in effect) (#24) | 2.00 | 0.17 | 0.96 | − 0.3 | 1.82 | 0.19 | |||
| Characteristic withdrawal symptoms; substance taken to relieve withdrawal (#13) | 0.14 | 0.13 | 1.11 | 1.4 | 1.84 | 4.6 | |||
| Continued use despite social or interpersonal problems (#35) | − 2.11 | 0.12 | 0.81 | − 3.5 | 0.98 | 0.0 | |||
| Failure to fulfill major role obligation (e.g., work, school, home) (#19) | − 1.68 | 0.12 | 0.74 | − 4.9 | 0.71 | − 1.9 | |||
| Use in physically hazardous situations (#33) | − 1.72 | 0.12 | 0.77 | − 4.4 | 1.22 | 1.3 | |||
| Craving, or a strong desire or urge to use (#29) | 0.91 | 0.15 | 0.72 | − 3.5 | 0.80 | − 0.9 | |||
MnSq mean square; Zstd standardized score, SE standard error