This is a protocol for a Cochrane Review (Intervention). The objectives are as follows:

To compare the effectiveness of EWS intervention plus TAU for those with schizophrenia with two types of TAU. Firstly TAU that includes another psychological therapy, and secondly TAU that does not include a psychological therapy as part of its care plan.

Another objective was, if possible, to compare the effectiveness of intermittent medication used on recognition of EWS in people not taking maintenance neuroleptic medication with TAU involving maintenance neuroleptic medication.

Other areas of interest were EWS as primary focus of the intervention or as part of another intervention; EWS intervention delivered to patient only or patient and carer or health professional; EWS intervention delivered to carer only versus carer and patient; EWS intervention delivered individually versus group intervention.