2. Suggested design of study.

Methods	Allocation: randomised, clearly described and concealed. Duration: 1 year or more.
Participants	Diagnosis: schizophrenia. N = 300. Age: adults. Sex: men or women. History: perhaps once an episode of moderate severity has subsided and after a period of stability.
Interventions	1. Social skills programme: delivered in a way that is possible in routine care with minimal additional resource. 2. Standard care.
Outcomes	Healthy days. Mental state: improved to important degree. Global state: improved to important degree, relapse. Service use: admission, time in hospital. Social functioning: employment status, relationships. Quality of life: improved to important degree. Economic outcomes: cost. Adverse effect: Any important adverse event