From: How high: Quantity as a predictor of cannabis-related problems
Variable | B | SE B | β | R 2 | R 2 -Change |
---|---|---|---|---|---|
Step 1 | Â | Â | Â | 0.124 | 0.107*** |
   Respondent sex | 0.219 | 0.047 | 0.102*** |  |  |
   Respondent age | -0.006 | 0.002 | -0.063* |  |  |
   Ever smoked cigarettes | 0.115 | 0.064 | 0.057 |  |  |
   Cigarettes smoked per day | 0.028 | 0.003 | 0.268*** |  |  |
Step 2 | Â | Â | Â | 0.134 | 0.010*** |
   Frequency of use (days per month) | 0.194 | 0.088 | 0.062* |  |  |
Step 3 | Â | Â | Â | 0.140 | 0.005** |
   Quarter ounces per month | 0.297 | 0.094 | 0.087** |  |  |
Step 4 | Â | Â | Â | 0.142 | 0.002* |
   Usual intoxication intensity | 0.073 | 0.023 | 0.091** |  |  |
Step 5 | Â | Â | Â | 0.144 | 0.002* |
   Maximum intoxication intensity | -0.059 | 0.025 | -0.074** |  |  |
F (8,1868) = 39.267, p < 0.001. | Â | Â | Â | Â | Â |