In adults with psychosis, how effective are group therapies and interventions, compared to individual therapies and interventions, in improving patient outcomes?
There is limited high quality evidence that looks into the
efficacy of group interventions compared to individual
interventions, for adults with psychosis. More well-conducted
trials are required to determine the most effective therapy for
improving symptoms of psychosis.
Clinical and research implications
One small RCT (n = 100) found some evidence that group
psychotherapy participants were significantly more likely to still
be in active therapy after 12 months, and have better overall
outcomes at 24 months compared to those receiving individual
psychotherapy. Another small RCT (n = 26) found no significant
differences between group and individual cognitive differentiation
therapies. As both were poor quality trials there is a lack of high
quality evidence comparing group and individual therapies in adults
with psychosis and further, large RCTs are needed with longer
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