Table 1 Descriptive characteristics of the mYFAS 2.0 scale items: means, standard deviations, correlations of the items with the scale, and Cronbach’s alpha if an item is deleted
mYFAS 2.0 items | Mean | SD | Correlation with the Scale | Alpha when item dropped |
|---|---|---|---|---|
1. Substance taken in larger amount and for longer period than intended | 0.90 | 1.33 | 0.55 | 0.89 |
2. Persistent desire or repeated unsuccessful attempts to quit | 0.90 | 1.37 | 0.60 | 0.89 |
3. Much time/activity to obtain, use, recover | 0.26 | 0.89 | 0.69 | 0.89 |
4. Important social, occupational or recreational activities given up or reduced | 0.63 | 1.15 | 0.69 | 0.88 |
7. Use continues despite knowledge of adverse consequences | 0.26 | 0.82 | 0.77 | 0.88 |
8. Tolerance | 0.43 | 1.07 | 0.74 | 0.88 |
9. Characteristic withdrawal symptoms; substance taken to relieve withdrawal | 0.59 | 1.16 | 0.64 | 0.89 |
10. Continued use despite social or interpersonal problems | 0.47 | 1.08 | 0.70 | 0.88 |
11. Failure to fulfil major role obligations | 0.81 | 1.38 | 0.63 | 0.89 |
12. Use in physically hazardous situations | 0.29 | 0.87 | 0.71 | 0.88 |
13. Craving, or a strong desire or urge to use | 0.34 | 0.98 | 0.74 | 0.88 |