To drink or not to drink: When drinking intentions predict alcohol consumption and consequences

Area of Science:

• Psychology
• Behavioral Science
• Public Health

Background:

• Understanding the factors influencing alcohol consumption is crucial for developing effective public health interventions.
• The relationship between intentions, behavior, and subsequent negative outcomes requires nuanced investigation, considering individual and environmental moderators.

Purpose of the Study:

• To examine the daily association between drinking intentions and drinking behavior.
• To investigate the moderating roles of past drinking behavior and social environment on the intention-behavior link.
• To explore intentionality as a moderator of the relationship between alcohol consumption and next-day negative outcomes.

Main Methods:

• Two micro-longitudinal studies involving college students (N=1,641 and N=540).
• Participants completed diary surveys for 30 days, reporting alcohol consumption, social environment, stress, regret, and drinking intentions.
• Data collection involved bursts of assessment to capture daily fluctuations.

Main Results:

• Drinking intentions more strongly predicted drinking behavior in individuals with less frequent past drinking and, in one sample, in low-drinking social environments.
• Contrary to hypotheses, low drinking intentions were associated with increased next-day stress, particularly with lower alcohol consumption.
• Higher alcohol consumption was linked to greater regret, with this association being stronger for individuals with higher drinking intentions.

Conclusions:

• The interplay between intentions, social environment, and contextual factors significantly influences drinking behavior and related problems.
• Findings highlight the complexity of predicting alcohol consumption and its consequences, emphasizing the need to consider individual differences and situational contexts.
• Interventions may need to be tailored to address specific intention-behavior dynamics and environmental influences to effectively reduce alcohol-related harm.