Table 1 Factor weights of the CPQ-A-S items for a single-factor solution

1 Smoke more on your own

.548

2 Worried meeting people when stoned

.336

3 More time with smoking friends

.522

4 Criticized for smoking too much

.558

5 Worried money spent on cannabis

.754

6 Trouble with police

.517

7 Physically sick after smoking

.458

8 Passed out after smoking

.377

9 Pains inchest or lungs after smoking

.774

10 Persistent chest infection/cough

.520

11 Paranoid or antisocial after smoking

.820

12 Worried losing friends or family

.498