Marcus has been referred to a clinical psychologist and has been diagnosed with schizophrenia. During his consultation, his father reported that Marcus regularly hears a voice providing a running commentary of his daily actions. Marcus also strongly believes that a local radio host is broadcasting his personal thoughts live to the public. Recently, Marcus has abandoned his favourite hobby of gardening, shows a complete lack of emotional response (flat affect) during conversations, and barely speaks, often replying in single-word answers. His father admits that he frequently sighs around Marcus, expresses severe disappointment in his career progress, and accuses him of being lazy.
Marcus's psychologist is considering utilizing a psychological therapy to help him.
To what extent could one psychological treatment be effective for Marcus's schizophrenia?
You must make reference to the context in your answer.
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