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Updated: Jul 6, 2026
Study of Experimental Organ Donation Models for Lung Transplantation
Published on: March 15, 2024
A quasi-experimental investigation of message appeal variations on organ donor registration rates
Jason T Siegel1, Eusebio M Alvaro, William D Crano
1School of Behavioral and Organizational Sciences, Department of Psychology, Claremont Graduate University, Claremont, CA 91711, USA. jason.siegel@cgu.edu
Objective:
Approximately 6,000 Americans die every year awaiting an organ transplant. Health promotion interventions may alleviate the shortage of viable organs by increasing the number of registered organ donors. This study is the first to evaluate the differential effectiveness of various organ donor messages in naturalistic settings.
Design:
A 4 (Appeal)x4 (Exemplar)x4 (Location) counterbalanced quasi-experimental design was implemented.
Main Outcome Measure:
The behavioral outcome measure was the number of individuals who registered to be organ donors at computer kiosks.
Results:
A number of significant main effects and interactions emerged. Most notably, of the 4 different appeals (counterargument, emotional, motivating action, dissonance), counterargument was by far the most efficacious, especially in academic-type settings (library, university, community college); the emotional appeal was most successful in hospitals.
Conclusions:
The findings from this study have implications for both organ donor investigations and health campaign research in general. Statistical interactions highlight the importance of evaluating multiple exemplars in multiple locations for each type of appeal when conducting health campaign research.
Insights
The counterargument message was most effective for increasing organ donor registrations, particularly in academic settings. Emotional appeals were more successful in hospital environments. This research aids health promotion strategies.
Area of Science:
- Health Communication
- Public Health Interventions
- Behavioral Science
Background:
- Organ transplant waiting lists result in significant annual mortality.
- Health promotion interventions can increase organ donor registration rates.
- Effectiveness of different donor messages in real-world settings is understudied.
Purpose of the Study:
- To evaluate the comparative effectiveness of various organ donor messages.
- To assess message efficacy across different naturalistic settings.
- To inform targeted health promotion strategies for organ donation.
Main Methods:
- Quasi-experimental design with a 4x4x4 factorial structure (appeal, exemplar, location).
- Behavioral outcome measured by organ donor registrations at computer kiosks.
- Counterbalanced implementation of different message conditions.
Main Results:
- Significant main effects and interactions were observed for different appeals and settings.
- Counterargument appeals were most effective, especially in academic locations (universities, libraries).
- Emotional appeals showed higher efficacy in hospital settings.
Conclusions:
- Message effectiveness for organ donation registration varies significantly by appeal type and setting.
- Health campaign research should consider message-context interactions.
- Findings provide evidence-based insights for optimizing organ donor recruitment strategies.
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