Time-intensive behavioural activation for depression: A multiple baseline study

Area of Science:

• Psychiatry and Mental Health
• Clinical Psychology
• Behavioral Science

Background:

• Depression is a leading cause of global disability, necessitating improved treatment access.
• Behavioral activation (BA) and intensive treatment delivery are promising but under-researched in combination.
• Limited research exists on the combined approach of time-intensive BA for depression.

Purpose of the Study:

• To investigate the feasibility of time-intensive behavioral activation (BA) for major depressive disorder.
• To assess the effectiveness of time-intensive BA in reducing depression symptoms.
• To evaluate the acceptability of time-intensive BA among adult outpatients and therapists.

Main Methods:

• A single-case experimental design with multiple baselines was employed.
• Eight adults with major depressive disorder received time-intensive BA (up to 7 sessions, twice weekly, with daily prompting).
• Idiographic, standardized, and process measures of depression symptomatology were collected.

Main Results:

• Recruitment and retention indicated intervention feasibility.
• 6 out of 8 participants showed significant improvements in idiographic depression symptoms.
• Four participants responded to treatment based on standardized measures, with maintained progress at follow-up.
• The intervention was highly acceptable to participants and therapists.

Conclusions:

• Time-intensive BA appears feasible, effective, and acceptable for some adult outpatients with depression.
• Tentative evidence suggests potential benefits, but generalizability and long-term durability require further investigation.
• More rigorous evaluation of time-intensive BA is warranted.