International Psychogeriatrics

Studies on Measurement

Caregiver and Clinician Assessment of Behavioral Disturbances: The California Dementia Behavior Questionnaire

Jeff Victoroff a1, Kristy Nielson a2 and Dan Mungas a3
a1 Department of Neurology, University of Southern California School of Medicine, Los Angeles, California, USA
a2 Institute for Brain Aging and Dementia, University of California Irvine, Irvine, California, USA
a3 Department of Neurology, University of California Davis School of Medicine, Davis, California, USA

Article author query
victoroff j   [PubMed][Google Scholar] 
nielson k   [PubMed][Google Scholar] 
mungas d   [PubMed][Google Scholar] 


As part of a multicenter project to study noncognitive behavioral disturbances in dementia, the authors developed a comprehensive caregiver-rated questionnaire for these behaviors. The authors determined the reliability of caregiver ratings and compared caregiver ratings with clinician ratings using standard instruments. Caregivers showed good test/retest reliability for ratings of all types of patient behavioral disturbance. Caregiver interrater reliability was highest for depression and lowest for psychosis. The correlation between caregiver reports and professional assessments was highest for agitation, intermediate for psychosis, and lowest for depression. The match between caregiver and clinician assessments of patient behaviors appears to vary significantly by the type of behavior assessed.