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Modeling Alcohol Consumption in Rodents Using Two-Bottle Choice Home Cage Drinking and Microstructural Analysis
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Does changing social influence engender changes in alcohol intake? A meta-analysis.

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Changing social influences on drinking, particularly by providing normative information, can alter alcohol intake. However, even significant shifts in social influences yield only minor reductions in drinking behavior.

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Area of Science:

  • Psychology
  • Public Health
  • Behavioral Science

Background:

  • Social influences significantly impact alcohol consumption patterns.
  • Previous research suggests interventions targeting social influences can reduce drinking.
  • A comprehensive meta-analysis of experimental evidence and effective strategies was lacking.

Purpose of the Study:

  • To systematically review and meta-analyze experimental evidence on social influence-based interventions for reducing alcohol intake.
  • To identify the most effective behavior change techniques for altering social influences on drinking.
  • To quantify the association between changes in social influences and alcohol consumption.

Main Methods:

  • Systematic review and meta-analysis of 41 randomized controlled trials involving 17,445 adult participants.
  • Coding of behavior change techniques employed in each intervention.
  • Calculation of effect sizes for interventions' impact on social influence and alcohol intake, with metaregression analysis.

Main Results:

  • Changes in social influences were significantly associated with changes in alcohol intake.
  • Moderate-to-large changes in social influences resulted in only small reductions in drinking behavior.
  • Providing normative information about others' drinking behavior was the most effective technique for altering social influences.

Conclusions:

  • Social influences and normative beliefs regarding alcohol consumption are malleable, especially through normative information provision.
  • While interventions can change these social constructs, the resulting reduction in alcohol intake is typically small.
  • Further research may be needed to enhance the efficacy of social influence interventions for substantial alcohol reduction.