Análisis psicométrico del Cuestionario de Discapacidad del Dolor Lumbar de Oswestry

Use of measurement and assessment of disability requires the validity by most common psychometric tools. This study analyzes fiability of the Oswestry Lower Back Pain Disability Questionnaire, measurement tool of disability caused by the referred injury using a sample of 26 patients and analyzing the items' internal consistence of the completed questionnaires by the Cronbach α coefficient (Classical Theory of Tests). Results show the approach to published studies and evidence the clear possibilities of new validations with wieder samples, even using other psychometric theories.