FA criteria | M (SD) | Factor loadings | Communalities |
Tolerance | 0.36 (0.48) | .56 | .32 |
Withdrawal symptoms | 0.21 (0.41) | .81 | .66 |
Substance taken in larger amounts and for longer periods than intended | 0.25 (0.44) | .81 | .66 |
Persistent desire or repeated unsuccessful attempts to quit | 0.97 (0.16) | ------ | ------ |
Much time/activity to obtain, use, recover | 0.29 (0.45) | .83 | .69 |
Important social, occupational, or recreational activities given up or reduced | 0.08 (0.28) | .71 | .51 |
Use continues despite knowledge of adverse consequences | 0.50 (0.50) | .51 | .26 |
Use causes clinically significant impairment or distress | 0.21 (0.41) | .81 | .65 |