Simultaneous alcohol and cannabis expectancies predict simultaneous use
2006

Expectancies for Simultaneous Alcohol and Cannabis Use

Sample size: 2637 publication Evidence: moderate

Author Information

Author(s): Smucker Barnwell Sara, Earleywine Mitch

Primary Institution: VA Greater Los Angeles Healthcare System; University at Albany, State University of New York

Hypothesis

Unique cognitive expectancies may underlie simultaneous alcohol and cannabis use.

Conclusion

Simultaneous expectancies for alcohol and cannabis predicted simultaneous use beyond individual expectancies for each drug.

Supporting Evidence

  • Expectancies for simultaneous use predicted actual use.
  • Participants reported different amounts of alcohol consumed when using cannabis simultaneously.
  • Simultaneous expectancies accounted for unique variance in predicting drug use.

Takeaway

People who think using alcohol and cannabis together will make their experience better are more likely to use both at the same time.

Methodology

The study used an online survey to assess expectancies and drug use among participants who consume alcohol and cannabis at least once a month.

Potential Biases

Participants were recruited from cannabis advocacy organizations, which may influence their responses.

Limitations

The sample was predominantly Caucasian and educated, which may limit generalizability.

Participant Demographics

{"gender":{"male":66,"female":34},"age_range":"13-86","mean_age":34,"ethnicity":{"European":91,"Latino":4,"African":2,"Asian":1,"Mixed":1,"Other":1},"education":{"Some high school":4,"High School diploma":11,"Some college":39,"Associate's degree":12,"Bachelor's degree":23,"Master's degree":7,"Beyond Master's":4},"income":{"Less than $20,000":35,"$20,000–$40,000":29,"$40,000–$60,000":16,"$60,000–$80,000":7,"$80,000–$100,000":4,"$100,000+":4}}

Statistical Information

P-Value

p<0.01

Statistical Significance

p<0.01

Digital Object Identifier (DOI)

10.1186/1747-597X-1-29

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