Item and Primary Sub-constructs Na Mean(SD) Correlation with total Alpha/Alpha with deleted item
Severity 551 5.88 (1.36)   0.76
1. The earlier a person starts smoking, the greater the harm 549 6.25 (1.48) 0.54 0.72
2. More smokers get sickness than nonsmokers 551 5.74(1.77) 0.63 0.62
3. Smokers died earlier than nonsmokers 550 5.67 (1.69) 0.59 0.67
Vulnerability 551 4.76 (1.37)   0.48
4. I would become addict if I smoking 550 2.84 (2.11) 0.12 0.70
5. I would get sick if I smoke 550 5.41 (2.06) 0.44 0.12
6. If I smoke, I may die earlier 550 6.03 (1.67) 0.41 0.24
Intrinsic Rewards 550 2.36 (1.44)   0.80
10. Smoking makes people feel comfortable 550 2.49 (1.79) 0.58 0.79
11. Smoking helps people concentrate 549 2.46 (1.78) 0.70 0.66
12. Smoking enhances brainwork 549 2.12 (1.54) 0.66 0.72
Extrinsic Rewards 551 2.71 (1.42)   0.61
7. Smokers look cool and fashionable 551 2.48 (1.86) 0.41 0.51
8. Smoking is good for social networking 551 3.05 (2.05) 0.48 0.42
9. The life of a smoker is happier than a nonsmoker 550 2.59 (1.77) 0.37 0.58
Self-Efficacy 550 5.94 (1.40)   0.73
13. No one could persuade me if I do not want to smoke 549 5.59 (1.98) 0.53 0.68
14. Even if all who around me smoke, that do not mean I must smoke 548 6.13 (1.64) 0.59 0.59
15. I can refuse even if a relative or friend asks me to smoke 550 6.13 (1.54) 0.55 0.65
Response Efficacy 550 5.14 (1.70)    0.68
16. People will feel good by not smoking 549 4.68 (2.25) 0.45 0.65
17. People will be less likely to get disease if they do not smoke 550 5.37 (2.16) 0.58 0.47
18. Quit smoking is good for disease recovery 550 5.37 (2.09) 0.46 0.64
Response Cost 550 2.58 (1.41)   0.59
19. A person may be isolated if…does not smoke 550 2.02 (1.66) 0.43 0.45
20. Refusing a cigarette offer is very impolite 550 3.17 (2.06) 0.37 0.54
21. One will miss the enjoyment if he or she does not smoke 550 2.54 (1.97) 0.41 0.47
Note: aEffective sample size; item-total correlation coefficients were all statistically significant (p<0.01).
Table 2: Item Response and Reliability of the PMT Scale for Tobacco Use among Chinese Adolescents (N=553).
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