# NIH Reporter #4DP2HL173857-02

A Paradigm Shift in Health Behavior Change: Understanding When and How Social Comparison Supports Healthy Behavior

**Recipient:** Rowan University

**Award Amount:** $929,997.00
**Ceiling:** $929,997.00

**Awarded:** September 14, 2026

**Identifier:** 4DP2HL173857-02

This award supports research to understand how social comparison influences health behavior, particularly physical activity, using innovative naturalistic and experimental methods to identify causal mechanisms and improve health interventions.

### Description

Prompts to evaluate ourselves relative to others (i.e., social comparison) are increasingly engineered into our daily lives to promote specific behaviors, including in digital health technologies and health behavior change interventions. Despite its ubiquity, however, we do not yet understand how social comparison affects health behavior, including its demonstrated negative effects. Our poor understanding of the mechanistic pathway linking social comparison to health behavior limits the efficacy of many of our chronic disease prevention and intervention efforts. The proposed DP2 New Innovator Award will address the critical and overlooked opportunity to understand how social comparison affects health behavior, by introducing a new paradigm for research in this area. The traditional approach to studying the effects of social comparison uses methods that describe static differences between people, which cannot identify the nuances of what happens when comparison occurs in daily life. By assessing the complexities of social comparison and health behavior as they occur (using ambulatory, naturalistic assessment), and embedding a randomized experimental design, the proposed series of iterative studies will finally identify the unknown causal, mechanistic pathway(s) from social comparison to health behavior. This work will focus on physical activity leaderboards, a widely disseminated method for activating social comparison that has shown both positive and negative effects on physical activity, to understand how social comparison affects physical activity behavior among insufficiently active adults (total N = 300). The work will be guided by a detailed theoretical model of how social comparison affects health behaviors in the natural environment.

[View original record](https://reporter.nih.gov/search/IgE1H2ioLUOz0qmA4MDg0Q/project-details/11062848)