NCT06313736

What SSI Duration is Most Effective? An Online Experiment With American Adults

How Long Should a Behavioral Activation Single-session Intervention be? A Four-armed Trial Comparing Effectiveness by Intervention Duration

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 1,145 (actual)
• Sponsor: Northwestern University · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

In a previous study (https://osf.io/qdznc), the research team found that an 8-minute version of a single-session intervention for loneliness was more effective than a 23-minute version of it. The present work aims to further explore the relationship between intervention duration and effectiveness. In this online trial, participants will be randomized to a 15-minute single-session depression intervention called the Action Brings Change (ABC) Program, a 10-minute version of it, a 6-minute version of it, or a 2-minute version of it. The main analysis will evaluate how change in depressive symptoms over eight weeks differs across conditions.

Conditions

• Depression

Interventions

Type	Name	Description
BEHAVIORAL	Action Brings Change Project (15-minute adult version)	The ABC Project is a self-guided online single-session intervention based on principles of behavioral activation. In a slightly different form intended for adolescents, it has demonstrated efficacy in several studies. Its adult version has also shown some efficacy.
BEHAVIORAL	Action Brings Change Project (10-minute adult version)	This is a 10-minute shortened version of the 15-minute adult version of the ABC Project. The research team created it and pilot-tested it.
BEHAVIORAL	Action Brings Change Project (6-minute adult version)	This is a 6-minute shortened version of the 15-minute adult version of the ABC Project. The research team created it and pilot-tested it.
BEHAVIORAL	Action Brings Change Project (2-minute adult version)	This is a 2-minute shortened version of the 15-minute adult version of the ABC Project. The research team created it and pilot-tested it.

Timeline

• Start date: 2024-03-20
• Primary completion: 2024-05-22
• Completion: 2024-05-22
• First posted: 2024-03-15
• Last updated: 2024-09-19

Locations

1 site across 1 country: United States