Zarit Burden Interview (ZBI)
Overview
- Purpose
- Measure the stresses experienced by caregivers of people with dementia
- Respondent
- Caregiver
- Administration Methods
- Survey
- Interview
- Administration Modes
- In-person
- Developer
- Zarit 0
- Population
- Age Related Disability
Instrument Citation(s)
Zarit Burden Interview (29 items). Zarit, S.H., Reever, K.E., & Bach-Peterson, J. (1980). Relatives of the
impaired elderly: Correlates of feelings of burden. The Gerontologist, 20(6), 649-655.
Zarit Burden Interview (22 items). file:///C:/Users/erick100/Downloads/ZBI-22_AU1.0_eng-USori_ReviewCopy.pdf
Zarit Burden Interview (12 items). https://c.ymcdn.com/sites/aahcm.site-ym.com/resource/resmgr/frontiers/ZBI-12_Form.pdf 
Psychometric Citations
Seng, G.K., Luo, N., Ng, W.Y., Lim, J. Chionh, H.L., Goh, J., & Yap, P. (2010). Validity and reliability of the
Zarit Burden Interview in assessing caregiving burden. Annals Academy of Medicine Singapore,
39, 758-763.- Type of Publication
- Peer review
- Instrument Language
- English
- Sample: Age (Mean and Range)
Mean=50.1 years
- Sample: Age Group
18-64 Years
- Sample: Countries/State
Singapore
- Sample: Disability Type
N/A
- Sample: Gender (%male)
32%
- Sample: Race/Ethnicity (%)
95% Chinese
- Sample: Sampling Strategy
Convenience Sample
- Sample: Size
246
- Reliability: Internal Consistency
Cronbach's Alpha overall (α=0.93)
- Reliability: Test-retest
ICC (r= .89)
- Validity: Construct (Convergent and Discriminant)
High correlations with other measures (r = .53 to .73)
- Study design
- Cross-sectional
Lai, D.W. (2007). Validation of the Zarit Burden Interview for Chinese Canadian Caregivers. Social Work
Research, 31(1), 45-53.- Type of Publication
- Peer review
- Instrument Language
- Chinese
- Sample: Age (Mean and Range)
18 - 34 (19%);
35 - 54 (55%):
> 55 (26%)- Sample: Age Group
18-64 Years
- Sample: Countries/State
Canada
- Sample: Disability Type
N/A
- Sample: Gender (%male)
34%
- Sample: Race/Ethnicity (%)
ethnic Chinese
- Sample: Sampling Strategy
Random sampling
- Sample: Size
339
- Reliability: Internal Consistency
Cronbach's Alpha for Sacrifice and strain(α = .88);
Cronbach's Alpha for Inadequacy (α=.88);
Cronbach's Alpha for Embarrassment/Anger(α = .72);
Cronbach's Alpha for Dependency = .67;
Cronbach's Alpha for Loss of control = .70- Validity: Construct (Convergent and Discriminant)
Confirmatory factor analysis of the five-factor model: χ2/df ratio = 4.08; RMSEA = .09; NNFI = .92; NFI = .92; CFI = .093
- Study design
- Cross-sectional
Bedard, M., Molloy, D.W., Squire, L., Dubois, S., Lever, J.A., & O’Donnell, M. (2001). The Zarit Burden
Interview: A new short version and screening version. The Gerontologist, 41(5), 652-657.- Type of Publication
- Peer review
- Instrument Language
- English
- Sample: Age (Mean and Range)
Mean=61.01 years
- Sample: Age Group
18-64 Years, 65+ Years
- Sample: Countries/State
United States
- Sample: Disability Type
N/A
- Sample: Gender (%male)
Not Reported
- Sample: Race/Ethnicity (%)
Not Reported
- Sample: Sampling Strategy
Convenience Sample
- Sample: Size
413
- Reliability: Internal Consistency
Cronbach's Alpha for the short version,
personal strain factor(α = 0.89);
role strain factor(α= 0.77)- Validity: Construct (Convergent and Discriminant)
Factor analysis resulted in two factors explaining 50% of the variance
- Validity: Criterion Validity (Concurrent and Predictive)
Correlations between the short version and the full version varied from 0.92 to 0.97 depending on the combination of diagnosis and time.
- Study design
- Cross-sectional
Ballesteros, J., Sasntos, B., Gonzalez-Fraile, E., Munoz-Hermoso, P., Dominguez-Panchon, A.I., & Martin-Carrasco, M. (2012). Unidimensional 12-item Zarit Caregiver Burden Interview for the assessment of dementia caregivers’ burden obtained by item response theory. Value in Health, 15, 1141-1147.
- Type of Publication
- Peer review
- Instrument Language
- Spanish and Portuguese
- Sample: Age (Mean and Range)
Mean=62.2 years
- Sample: Age Group
18-64 Years, 65+ Years
- Sample: Countries/State
Spain
- Sample: Disability Type
Age Related Disability
- Sample: Gender (%male)
23%
- Sample: Race/Ethnicity (%)
Not Reported
- Sample: Sampling Strategy
Random sampling
- Sample: Size
241
- Reliability: Internal Consistency
Cronbach's Alpha (α=0.89)
- Validity: Construct (Convergent and Discriminant)
Confirmatory factor analysis of a unidimensional latent structure: CFI=0.975; RMSEA =0.067
- Study design
- Cross-sectional