VALIDITY AND RELIABILITY OF MANIA RATING- SCALE

The aim of this study was to translate into Spanish the Mania Rating S cale. Diagnostic and concurrent validity and reliability were determin ed. Methods Patients were recruited from the Psychiatric Hospital ''Fr ay Bernardino Alvarez'' in Mexico City Using the Composite Internation al Diagnostic Interview (CIDI) to assess diagnosis, two groups were as signed: 26 patients with active mania and 28 schizophrenics used as co ntrols. The Mania Rating Scale was applied to all subjects in two diff erent occasions. The internal consistency was determined and the best diagnostic cut-off point was established to reach and adequate diagnos is using the CIDI as gold standard. Results The instrument's Cronchach 's alpha was 0.84 and the test-retest reliability, 0.98. The best cut- off point was reached at 28 points with 96% sensibility values and 100 % specificity. The total sum of the scale was significantly higher in manic patients than in schizophrenic subjects. Conclusion The Spanish version of the Mania Rating Scale is reliable and valid for the clinic al assessment of mania.