- To examine the effectiveness and acceptability of all BT approaches compared with treatment as usual/waiting list/attention placebo control conditions for acute depression.
- To examine the effectiveness and acceptability of different BT approaches (behavioural therapy, behavioural activation, social skills training and relaxation training) compared with treatment as usual/waiting list/attention placebo control conditions for acute depression.
- To examine the effectiveness and acceptability of all BT approaches compared with different types of comparator (standard care, no treatment, waiting list, attention placebo) for acute depression.
This is a protocol.