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The Zarit Burden Interview: A New Short Version and Screening Version

The Zarit Burden Interview: A New Short Version and Screening Version,Michel Bédard,D. William Molloy,Larry Squire,Judith A. Lever,Martin O'Donnell

The Zarit Burden Interview: A New Short Version and Screening Version   (Citations: 44)
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Purpose: The purpose of the study was to develop a short and a screening version of the Zarit Burden Interview (ZBI) that would be suitable across diagnostic groups of cognitively impaired older adults, and that could be used for cross-sectional, longitudinal, and intervention studies. Design and Methods: We used data from 413 care- givers of cognitively impaired older adults referred to a memory clinic. We collected information on caregiver burden with the 22-item ZBI, and information about de- pendence in activities of daily living (ADLs) and the fre- quency of problem behaviors among care recipients. We used factor analysis and item-total correlations to reduce the number of items while taking into consideration diag- nosis and change scores. Results: We produced a 12- item version (short) and a 4-item version (screening) of the ZBI. Correlations between the short and the full ver- sion ranged from 0.92 to 0.97, and from 0.83 to 0.93 for the screening version. Correlations between the three versions and ADL and problem behaviors were similar. We further investigated the behavior of the short version with a two-way analysis of variance and found that it produced identical results to the full version. Implications: The short and screening versions of the ZBI produced re- sults comparable to those of the full version. Reducing the number of items did not affect the properties of the ZBI, and it may lead to easier administration of the instrument.
Published in 2001.
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