This is the protocol for a review and there is no abstract. The objectives are as follows:
To assess the effectiveness of adjunct cognitive behavioural therapy for people with schizophrenia compared to specific adjunct pharmacological treatments.
To compare the effect the following variables have on outcome:
(i) people in their first episode of illness with those who have a longer history of illness.
(ii) level of therapist experience and qualification.
(iii) length of treatment/number of sessions