McLean 1973

Methods	Randomised controlled trial with two groups.
Participants	Country: Canada. Setting: other. Health problem: depression. Recruitment: health system. Participants: adults aged 20‐55 and their spouses (n=20).
Interventions	Contract features: Form: NA; Parties: patients‐carers; Incentives: other; Co‐interventions: yes. Experimental group: contract between husband and wife relating to the communication between themselves, training in social learning principles, and course in immediate feedback. Control group: usual care and monitoring the course of depression.
Outcomes	Target communication behaviours and negative reactions.
Notes
Risk of bias
Item	Authors' judgement	Description
Allocation concealment?	Unclear	B ‐ Unclear