Partner Intervention to Reduce Meat Consumption (PAIR): The Effectiveness of Dyadic Behavior Change Techniques

This study investigates the specific involvement of partners in dyadic interventions, focusing on how the intervention task (what is performed), the execution level (who performs the task) and the target level (for whom is the task performed) of dyadic behavior change techniques influence intervention effectiveness. We examine the impact of systematically varying execution and target levels across four intervention tasks (i.e., review of past mastery experiences, review of skills, weighing of pros and cons and recognition of health risks) on the intention to reduce meat consumption. Mechanisms of action for behavior change will be analyzed to gain initial insights into the underlying processes of dyadic behavior change. 3200 individuals will be recruited via Bilendi (https://www.bilendi.ch/) in Germany. We will conduct an experimental online study with a between-subjects design introducing the hypothetical scenario of a romantic couple receiving a dyadic intervention to reduce their meat consumption.