1) Outcome variables: psychotic symptoms, self-esteem, recovery style, personal evaluations, anxiety, and depression.
2) Interventions: Cognitive behavioral therapy (CBT) for psychosis.
3) Research finding: Some improvements in symptoms of anxiety, depression, and psychosis, but inconclusive results for other measures.
4) Number of samples: 1 participant (single case study).
5) External validity: Not good, as there was only one participant and not a random sampling.
6) Internal validity: Not strong, as it is difficult to determine if the changes in outcome variables were solely due to the CBT intervention.