[Factorial structure and internal consistency of the psychiatric evaluation scale of Krawiecka]

An analysis of internal consistency and factorial structure of Krawiecka's Psychiatric Evaluation Scale was carried out. Global alpha coefficient was found to be 0.36. Factorial analysis revealed the presence of three factors that accounted for 60% of total variance. Factor one included blunted-incongruent affect, poverty of speed and psychomotor retardation. Factor two loaded on delusions, hallucinations and anxiety-agitation and the third factor on incoherent-irrelevant speech and depression.