Psychometric properties of the Dyskinesia Identification System: Condensed User Scale (DISCUS)

Abstract

Individuals with developmental disability (N = 400) were assessed with the Dyskinesia Identification System: Condensed User Scale (DISCUS), a 15-item tardive dyskinesia rating scale shortened from the 34-item Dyskinesia Identification System-Coldwater (DIS-Co). Interrater reliability assessments were made for 148 individuals, and 2-week stability (test-retest) assessments were made for 128 individuals. Mean DISCUS total score was 4.1 (SD = 3.5); reliability was .92, p less than .001, and stability was .40, p less than .001. Based upon this study and a larger study of 4,649 individuals with developmental disability, we recommend that clinicians carefully evaluate for tardive dyskinesia any individuals with developmental disability who have been prescribed antipsychotics for greater than 3 months and who score 6 or above on the DISCUS.

• Authors: R L Sprague, J E Kalachnik, K M Slaw, K M Shaw
• Journal: Mental retardation (Ment Retard) Vol. 27 Issue 3 Pg. 141-8 (Jun 1989) ISSN: 0047-6765 [Print] United States
• PMID: 2739567 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, P.H.S.)

Chemical References

• Psychotropic Drugs

Topics

• Adolescent
• Adult
• Child
• Child, Preschool
• Dyskinesia, Drug-Induced (diagnosis)
• Female
• Humans
• Intellectual Disability (drug therapy)
• Male
• Middle Aged
• Psychological Tests
• Psychometrics
• Psychotropic Drugs (adverse effects, therapeutic use)