Reliability and validity of three rating scales for assessing tardive dyskinesia in individuals with developmental disabilities

摘要

The incorporation of a standardized assessment and monitoring procedure for TD into the treatment plans for all individuals prescribed antipsychotic medications has become the standard of care. There are several well-known and established rating scales designed specifically for this purpose. The AIMS and the DISCUS are two of the most commonly used instruments to detect and monitor abnormal movements associated with TD in individuals with developmental disabilities. The CLAMPS is a newly developed rating scale also designed for use in individuals with developmental disabilities to monitor for and assess abnormal movements, including those associated with TD and other disorders. In this study, we investigated the concurrent validity and interrater reliability of these three scales in a sample of seven adults with mental retardation and TD. The results indicated that, overall, the dyskinesia subscales of the CLAMPS showed the greatest level of agreement with the DISCUS subscales. Lower levels of agreement were observed between the CLAMPS and AIMS dyskinesia subscales. The degree of interrater reliability observed for the AIMS and DISCUS subscale scores was consistent with that found in previous research and, with the exception of three subscales, the CLAMPS demonstrated an interrater reliability of a magnitude comparable to the other two. There are some advantages of the CLAMPS and further research on this rating scale is warranted.