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Incentives and delivery modality as moderators of a web-based personalized normative feedback intervention for
Clayton Neighbors1, Lindsey M Rodriguez2, Mary M Tomkins3
1Department of Psychology, University of Houston.
Summary
Personalized normative feedback (PNF) reduced alcohol consumption in college students. However, in-lab delivery and no financial incentives enhanced PNF
Area of Science:
- Behavioral science
- Public health
- Psychology
Background:
- Heavy-drinking college students are a target population for interventions.
- Computer-delivered interventions, such as personalized normative feedback (PNF), show promise.
- Delivery modality (in-lab vs. remote) and incentives are understudied factors influencing intervention efficacy.
Purpose of the Study:
- To evaluate the influence of delivery modality and incentives on a computer-delivered PNF intervention for heavy-drinking college students.
- To compare the efficacy of in-lab versus remote PNF delivery.
- To assess the impact of monetary compensation on intervention effectiveness.
Main Methods:
- A 2x2x2 factorial design was employed with 498 heavy-drinking college students.
- Factors included intervention type (PNF vs. control), delivery modality (in-lab vs. remote), and compensation ($0 vs. $30).
- Primary outcomes measured alcohol consumption and alcohol-related consequences at 3- and 6-month follow-ups.
Main Results:
- PNF demonstrated efficacy in reducing monthly alcohol consumption and some negative consequences.
- In-lab PNF delivery was more effective for reducing consumption in male participants.
- Participants receiving no compensation showed greater reductions in past-month drinks compared to those who received $30.
Conclusions:
- While computer-delivered PNF is effective, its efficacy may be influenced by delivery context.
- Remote delivery offers logistical advantages but may result in a potential loss of intervention effectiveness.
- Future research and applications should consider these methodological factors when implementing PNF interventions for college students.
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