post assessment variables except psychosocial skill of refusing unreasonable request. This result might be due to lack of social competences and the presence of irrational beliefs or negative automatic thoughts (NATs) which trigger the patients easily by external or internal events and they usually perceive situations of life as being threatening and anxiety provoking. Also, people with chronic schizophrenia vary considerably in their cognitive functioning; cognitive flexibility is particularly necessary to produce alternative solutions to problems and is a significant predictor of the effect of social skills training on the acquisition of skills in social problem solving [37].