Effects of Streak-Based Versus Tally-Based Feedback on Daily Lesson Completion During a 30-Day Digital Health Challenge

Completed · Not applicable

Conditions studied: Preventive Health Care

In brief

The study will test two interventions for increasing engagement with a target behavior, delivered via a digital web application that participants can access using their phones or computers. For example, in the streak group, users would see how many consecutive days they have completed daily lessons and will be encouraged to extend their streak. In the tally group, participants will see how many cumulative days they have completed daily lessons and will be encouraged to extend their tally.

Key facts

Study ID

NCT07220044

Run by

University of Pennsylvania

People needed

7004

Starts

2025-09-23

Expected to finish

2026-01-21

Last updated by the study team

2026-02-03

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Our target population is 18 and older adults in the United States who have a valid U.S. phone number and who are willing to make an account on our web application for use during the duration of the study.

You may not qualify if…

• Children under 18 years of age and adults without a valid U.S. phone number

Where it is running

• University of Pennsylvania — Philadelphia, Pennsylvania, United States

Full record on ClinicalTrials.gov

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