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

Northwestern University

Status: Completed

Conditions: Depression

Treatments: Behavioral: Action Brings Change Project (2-minute adult version); Behavioral: Action Brings Change Project (6-minute adult version); Behavioral: Action Brings Change Project (10-minute adult version); Behavioral: Action Brings Change Project (15-minute adult version)

Study type: Interventional

Funder types: Other; NIH

Identifiers

NCT06313736

STU00220591_shortening

2T32MH115882-06A1 (U.S. NIH Grant/Contract)

Details and patient eligibility

About

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.

Enrollment: 1,145 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion and exclusion criteria

Inclusion Criteria: Participants must be:

• Located in the United States
• At least 18 years old
• Patient Health Questionnaire-8 (PHQ-8) score of at least 10 (moderate or more severe) at screener.
• Able to read and speak fluent English
• Able to access to the internet via a computer, tablet or smartphone for the next eight weeks

Exclusion Criteria:

• Participants who have completed the first session of the study before or completed another study testing a depression intervention from our laboratory via the same participant recruitment platform in the past two months.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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1,145 participants in 4 patient groups

15-minute single-session depression intervention

Experimental group

Description:

This is the adult version of the Action Brings Change (ABC) Project.

Treatment:

Behavioral: Action Brings Change Project (15-minute adult version)

10-minute single-session depression intervention

Experimental group

Description:

This includes a shortened version of the ABC Project.

Treatment:

Behavioral: Action Brings Change Project (10-minute adult version)

6-minute single-session depression intervention

Experimental group

Description:

This includes a shortened version of the ABC Project.

Treatment:

Behavioral: Action Brings Change Project (6-minute adult version)

2-minute single-session depression intervention

Experimental group

Description:

This includes a shortened version of the ABC Project.

Treatment:

Behavioral: Action Brings Change Project (2-minute adult version)