Related Experiment Video
Updated: Jan 20, 2026

Implementation of a Real-Time Psychosis Risk Detection and Alerting System Based on Electronic Health Records using CogStack
Published on: May 15, 2020
At-Risk Stakeholder Behavior Change with Community-Based Health Events
Abstract:
Community-based interventions such as health fairs feature diagnostic and preventive services that are useful to address health disparities in underserved stakeholders. Quantitative evaluation of these events presents challenges. This study applied the contemplation stage of the Trans-Theoretical Model of Behavioral Change (TTM-C) to evaluate health disparity-focused community interventions. Most of the 412 event participants self-identified as lower socioeconomic status (54%), overweight (74%), female (74%), and African American (83%). After event participation, stakeholders demonstrated significant improvement in overall TTM-C scores based on a standard t-test, where pre-event scores (M=30.8, SD=7.0) and post-event scores (M=32.3, SD=6.9) conditions t(346)=5.167, p=.001. For health disparity-related community events, underserved African American women are most likely to recognize a specific health issue and seek ideas about how to address it during these events. This study validates TTM-C behavioral change as a novel means to evaluate community health events.
Related Concept Videos
Community Based Intervention
Foundations of Community Mental Health Programs
Central to the success of community-based interventions is the...
What are Populations and Communities?
Global Climate Change
Relative Risk
Work Done During Volume Change
Consider a gas confined to a cylinder fitted with a movable piston at one end. If the gas expands from volume V1 to volume V2, it exerts a force on the piston, such that the piston moves by a distance dr.
The work done by the gas on the piston can be expressed as
Net Change Theorem

