| Period 1 (%) | Period 2 (%) | Chi.square | p-val | |
|---|---|---|---|---|
| Use since last prompt | 0.25 | 0.11 | 144.61 | 0.000 |
| Any craving since last prompt | 0.19 | 0.16 | 7.24 | 0.007 |
| Permit use since last prompt | 0.19 | 0.16 | 8.94 | 0.003 |
| ICC 1 | ICC 2 | Mean 1 | Mean 2 | SD 1 | SD 2 | Cohen’s D | |
|---|---|---|---|---|---|---|---|
| Anxious | 0.29 | 0.45 | 0.50 | 0.68 | 0.90 | 1.14 | -0.18 |
| Bored | 0.23 | 0.36 | 0.96 | 0.95 | 1.22 | 1.27 | 0.01 |
| Confident | 0.48 | 0.60 | 2.15 | 2.03 | 1.45 | 1.49 | 0.10 |
| Frustrated | 0.35 | 0.41 | 0.80 | 0.89 | 1.17 | 1.27 | -0.08 |
| Interested | 0.38 | 0.54 | 1.79 | 1.74 | 1.36 | 1.40 | 0.05 |
| Stressed | 0.45 | 0.41 | 1.02 | 1.07 | 1.28 | 1.32 | -0.05 |
| Motivated | 0.47 | 0.61 | 1.93 | 1.87 | 1.44 | 1.45 | 0.05 |
| Relaxed | 0.40 | 0.50 | 2.20 | 2.15 | 1.45 | 1.44 | 0.05 |
| PA Total | 0.57 | 0.70 | 2.02 | 1.95 | 1.13 | 1.19 | 0.07 |
| NA Total | 0.43 | 0.54 | 0.82 | 0.90 | 0.86 | 1.02 | -0.08 |
| Craving | 0.48 | 0.53 | 1.38 | 1.13 | 3.00 | 2.79 | 0.15 |
| Avail. | 0.45 | 0.55 | 2.54 | 2.45 | 1.55 | 1.59 | 0.07 |
| Conf. to abstain | 0.67 | 0.77 | 5.70 | 5.93 | 2.26 | 2.20 | -0.16 |
| How high now? | 0.14 | 0.47 | 1.33 | 0.82 | 2.44 | 2.28 | 0.33 |
| Period 1 (%) | Period 2 (%) | |
|---|---|---|
| For social reasons | 0.12 | 0.15 |
| To cope with negative feelings | 0.12 | 0.13 |
| For pleasure | 0.68 | 0.60 |
| To conform to what others were doing | 0.02 | 0.05 |
| To expand my mind | 0.06 | 0.06 |
Blank = 0%
| Period 1 (%) | Period 2 (%) | Chi.square | p-val | |
|---|---|---|---|---|
| Alone during use | 0.35 | 0.44 | 4.62 | 0.032 |
| Family | 0.17 | 0.07 | 6.61 | 0.010 |
| Friend | 0.77 | 0.93 | 13.87 | 0.000 |
| Bf/gf | 0.31 | 0.29 | 0.60 | 0.438 |
| Acquaintance | 0.15 | 0.13 | 1.87 | 0.171 |
| Someone else | 0.10 | 0.07 | 0.60 | 0.438 |
| When with family: | ||||
| Parents | 0.21 | 0.40 | 0.527 | |
| Brother or sister | 0.45 | 0.45 | 0.60 | 0.438 |
| Other relative | 0.44 | 0.80 | 1.15 | 0.283 |
| When with friends: | ||||
| Best male friend | 0.24 | 0.26 | 0.57 | 0.450 |
| Best female friend | 0.15 | 0.16 | 0.00 | 1.000 |
| Other friend | 0.40 | 0.38 | 0.11 | 0.736 |
| ICC 1 | ICC 2 | Mean 1 | Mean 2 | SD 1 | SD 2 | Cohen’s D | |
|---|---|---|---|---|---|---|---|
| General Pos. Feeling | 0.56 | 0.62 | 2.79 | 2.51 | 1.09 | 1.20 | 0.26 |
| Guilt | 0.50 | 0.56 | 0.56 | 0.75 | 0.82 | 0.87 | -0.20 |
| Fault | 0.50 | 0.70 | 1.98 | 1.67 | 1.17 | 1.14 | 0.29 |
| Able to give up | 0.61 | 0.57 | 1.01 | 1.06 | 0.99 | 1.00 | -0.05 |
| Encouraged | 0.59 | 0.75 | 1.67 | 1.15 | 1.05 | 1.05 | 0.51 |