The purpose of this study was to compare the cognitive function of patients with chronic and severe mental retardation (education-are) is the province. Causal comparative research into the field. Thus, among patients with chronic psychological well-being and rehabilitation of mental retardation in complex Miguel race Welfare Bushehr, 60 subjects were enrolled (30 in chronic psychiatric patients, 30 patients with mild mental retardation). The research instrument, Wechsler test adults. Results based on a
multivariate analysis of variance showed that cognitive function (verbal intelligence and practical intelligence) chronic mental disorders and mild mental retardation (educable) There is a significant difference. The results of this study suggest that chronic psychological and cognitive function in patients with mild mental retardation (learners)
can be studied and compared.