Table 1.
Descriptive Statistics of and Correlations among Study Variables
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. Gender | -- | ||||||||||||
| 2. Age | −.07 | -- | |||||||||||
| 3. School performance | .02 | .21*** | -- | ||||||||||
| 4. Smoking intention | −.31*** | −.06 | −.08 | -- | |||||||||
| 5. Frequency smoked in past month | −.43*** | .02 | −.11* | .57*** | -- | ||||||||
| 6. Number cigarettes per day | −.23** | .02 | −.08 | .25** | .61*** | -- | |||||||
| 7. Vulnerability | .08* | −.03 | .01 | −.16*** | −.10* | −.02 | -- | ||||||
| 8. Severity | .14*** | .04 | −.01 | −.23*** | −.20*** | −.06 | .52*** | -- | |||||
| 9. Extrinsic rewards | −.26*** | .01 | −.03 | .24*** | .36*** | .13 | −.05 | −.11** | -- | ||||
| 10. Intrinsic rewards | −.22*** | .01 | −.07 | .31*** | .37*** | .29*** | −.08* | −.22*** | .61*** | -- | |||
| 11. Response efficacy | .12** | −.09* | .01 | −.07 | −.14** | .02 | .24*** | .28*** | −.15*** | −.11* | -- | ||
| 12. Self-efficacy | .17*** | −.01 | .08 | −.19*** | −.29*** | −.10 | .18*** | .29*** | −.17*** | −.23*** | .41*** | -- | |
| 13. Response cost | −.28*** | .06 | −.01 | .24*** | .25*** | .15 | −.12** | −.23*** | .42*** | .44*** | −.12** | −.27*** | -- |
|
| |||||||||||||
| N | 553 | 553 | 550 | 538 | 528 | 133 | 551 | 551 | 551 | 550 | 550 | 550 | 550 |
| M | 1.50 | 16.28 | 3.20 | 1.61 | 1.45 | 1.79 | 4.76 | 5.88 | 2.71 | 2.36 | 5.14 | 5.94 | 2.58 |
| SD | .50 | .98 | .92 | .93 | .88 | .66 | 1.37 | 1.36 | 1.42 | 1.44 | 1.70 | 1.40 | 1.41 |
Notes. Gender was coded as 1 = boys, 2 = girls. Number of cigarettes smoked per day was restricted to students who had smoked in the past month (n = 133).
*
p < .05.
**
p < .01.
***
p < .001.