| Recruiting | The Health and Social Consequences of Depression Among the Elderly Depression, Functional Impairment | N/A | 2024-11-20 |
| Suspended | The Impact of Group Commitment Contracts on Smoking Cessation and Weight Loss Smoking Cessation, Weight Loss | N/A | 2023-12-18 |
| Completed | Are Sugar-Sweetened Beverage Information Labels Well-Targeted Soft Drink Consumption, Sugar-sweetened Beverages, Information Labels | N/A | 2021-10-18 |
| Completed | Using Explainable AI Risk Predictions to Nudge Influenza Vaccine Uptake Influenza, Vaccination, Health Promotion | N/A | 2021-09-09 |
| Completed | Lottery Incentive Nudges to Increase Influenza Vaccinations Influenza, Vaccination, Health Promotion | N/A | 2021-09-04 |
| Completed | COVID-19 Vaccination Take-Up Covid19, Vaccination | N/A | 2021-05-24 |
| Completed | What Works to Get the Elderly Vaccinated Against COVID-19? Experimental Evidence From India Aging, Covid19 | N/A | 2021-04-17 |
| Completed | The Doctors for Coronavirus Prevention Project Thanksgiving / Christmas Messaging Campaign Covid19 | N/A | 2020-11-12 |
| Completed | The Economic Consequences of Loneliness Among the Elderly Loneliness | N/A | 2020-11-01 |
| Completed | Covid-19 Messaging to Underserved Communities - 2nd Experiment Covid19 | N/A | 2020-08-07 |
| Completed | COVID-19 Health Messaging to Underserved Communities Coronavirus | N/A | 2020-05-13 |
| Active Not Recruiting | The Causal Effects of Old Age Pensions Aging | N/A | 2019-02-04 |
| Unknown | Illinois Workplace Wellness Study Employee Health and Well-being | N/A | 2016-07-11 |
| Completed | Increasing Medication Adherence Through Physician Incentives and Messaging Medication Adherence | N/A | 2012-06-01 |
| Completed | The Effect of Proximity on Flu-Shot Participation Influenza, Human | — | 2011-10-01 |
| Completed | A Commitment Device for Medication Adherence Among HIV Patients Acquired Immunodeficiency Syndrome, HIV | N/A | 2011-10-01 |
| Completed | Understanding Medication Adherence Among HIV Patients Patient Commitment Preferences for Medication Adherence | N/A | 2011-07-01 |
| Completed | The Effect of Time-Slot Scheduling and Active Choice on Biometric Screening Participation Preventative Health | N/A | 2011-04-01 |
| Completed | The Impact of Social Proximity on Conversion to Generic Prescription Medications Conversion From Brand Name to Generic Medication | N/A | 2011-03-01 |
| Completed | The Effect of Active Choice on Nurse Visit Participation Participation in Nurse Visits | N/A | 2010-12-01 |
| Completed | Evaluating Strategies to Control Hypercholesterolemia Cardiovascular Diseases, Heart Diseases, Hypercholesterolemia | — | 1991-04-01 |