Skip to main content

Table 6 Linear regression: simultaneous alcohol and cannabis expectancies account for variance in the prediction of simultaneous alcohol and cannabis use beyond individual alcohol expectancies or cannabis expectancies.

From: Simultaneous alcohol and cannabis expectancies predict simultaneous use

Variable ΔR2 R2 β t
Simultaneous Alcohol and Cannabis Use Drinks Per Month (Log Normal; df = 2517)
   Age .005   -067 -3.66**
   Gender .001 .006 .036 1.87
   AEQ .008 .014 .167 4.85**
   MEEQ .004 .018 .065 3.39**
   Simultaneous Expectancies .020 .038 .185 7.60**
Simultaneous Alcohol and Cannabis Use Cannabis Per Month (Log Normal; df = 2552)
   Age .019   -.143 -7.12**
   Gender .000 .019 -.021 -1.09
   AEQ .002 .021 -.066 2.43*
   MEEQ .001 .022 .026 1.34
   Simultaneous Expectancies .003 .025 .069 2.59*
  1. Note: Standardized regression coefficients (βs) derive from the step in which they are added to the equation.
  2. *p < .05 **p < ..01 _p = .05 Cannabis per month with alcohol = Metric weight of cannabis consumed when also drinking alcohol. Drinks per month with Cannabis = Number of alcoholic drinks when also consuming cannabis AEQ = Alcohol Expectancies; MEEQ = Cannabis Expectancies.