Measurement invariance across educational levels and gender in 12-item Zarit Burden Interview (ZBI) on caregivers of people with dementia

Chung Ying Lin, Li-Jung Elizabeth Ku, Amir H. Pakpour

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Background: The Zarit Burden Interview (ZBI) is a commonly used self-report to assess caregiver burden. A 12-item short form of the ZBI has been developed; however, its measurement invariance has not been examined across some different demographics. It is unclear whether different genders and educational levels of a population interpret the ZBI items similarly. Therefore, this study aimed to examine the measurement invariance of the 12-item ZBI across gender and educational levels in a Taiwanese sample. Methods: Caregivers who had a family member with dementia (n = 270) completed the ZBI through telephone interviews. Three confirmatory factor analysis (CFA) models were conducted: Model 1 was the configural model, Model 2 constrained all factor loadings, Model 3 constrained all factor loadings and item intercepts. Multiple group CFAs and the differential item functioning (DIF) contrast under Rasch analyses were used to detect measurement invariance across males (n = 100) and females (n = 170) and across educational levels of junior high schools and below (n = 86) and senior high schools and above (n = 183). Results: The fit index differences between models supported the measurement invariance across gender and across educational levels (comparative fit index (CFI) = -0.010 and 0.003; root mean square error of approximation (RMSEA) = -0.006 to 0.004). No substantial DIF contrast was found across gender and educational levels (value = -0.36 to 0.29). Conclusions: The ZBI is appropriate for combined use and for comparisons in caregivers across gender and different educational levels in Taiwan.

Original languageEnglish
Pages (from-to)1841-1848
Number of pages8
JournalInternational Psychogeriatrics
Volume29
Issue number11
DOIs
Publication statusPublished - 2017 Nov 1

Fingerprint

Caregivers
Dementia
Interviews
Taiwan
Self Report
Statistical Factor Analysis
Demography
Population

All Science Journal Classification (ASJC) codes

  • Clinical Psychology
  • Gerontology
  • Geriatrics and Gerontology
  • Psychiatry and Mental health

Cite this

@article{cbbbbcc9c2ee44819d8a03fd8d13f320,
title = "Measurement invariance across educational levels and gender in 12-item Zarit Burden Interview (ZBI) on caregivers of people with dementia",
abstract = "Background: The Zarit Burden Interview (ZBI) is a commonly used self-report to assess caregiver burden. A 12-item short form of the ZBI has been developed; however, its measurement invariance has not been examined across some different demographics. It is unclear whether different genders and educational levels of a population interpret the ZBI items similarly. Therefore, this study aimed to examine the measurement invariance of the 12-item ZBI across gender and educational levels in a Taiwanese sample. Methods: Caregivers who had a family member with dementia (n = 270) completed the ZBI through telephone interviews. Three confirmatory factor analysis (CFA) models were conducted: Model 1 was the configural model, Model 2 constrained all factor loadings, Model 3 constrained all factor loadings and item intercepts. Multiple group CFAs and the differential item functioning (DIF) contrast under Rasch analyses were used to detect measurement invariance across males (n = 100) and females (n = 170) and across educational levels of junior high schools and below (n = 86) and senior high schools and above (n = 183). Results: The fit index differences between models supported the measurement invariance across gender and across educational levels (comparative fit index (CFI) = -0.010 and 0.003; root mean square error of approximation (RMSEA) = -0.006 to 0.004). No substantial DIF contrast was found across gender and educational levels (value = -0.36 to 0.29). Conclusions: The ZBI is appropriate for combined use and for comparisons in caregivers across gender and different educational levels in Taiwan.",
author = "Lin, {Chung Ying} and Ku, {Li-Jung Elizabeth} and Pakpour, {Amir H.}",
year = "2017",
month = "11",
day = "1",
doi = "10.1017/S1041610217001417",
language = "English",
volume = "29",
pages = "1841--1848",
journal = "International Psychogeriatrics",
issn = "1041-6102",
publisher = "Cambridge University Press",
number = "11",

}

Measurement invariance across educational levels and gender in 12-item Zarit Burden Interview (ZBI) on caregivers of people with dementia. / Lin, Chung Ying; Ku, Li-Jung Elizabeth; Pakpour, Amir H.

In: International Psychogeriatrics, Vol. 29, No. 11, 01.11.2017, p. 1841-1848.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Measurement invariance across educational levels and gender in 12-item Zarit Burden Interview (ZBI) on caregivers of people with dementia

AU - Lin, Chung Ying

AU - Ku, Li-Jung Elizabeth

AU - Pakpour, Amir H.

PY - 2017/11/1

Y1 - 2017/11/1

N2 - Background: The Zarit Burden Interview (ZBI) is a commonly used self-report to assess caregiver burden. A 12-item short form of the ZBI has been developed; however, its measurement invariance has not been examined across some different demographics. It is unclear whether different genders and educational levels of a population interpret the ZBI items similarly. Therefore, this study aimed to examine the measurement invariance of the 12-item ZBI across gender and educational levels in a Taiwanese sample. Methods: Caregivers who had a family member with dementia (n = 270) completed the ZBI through telephone interviews. Three confirmatory factor analysis (CFA) models were conducted: Model 1 was the configural model, Model 2 constrained all factor loadings, Model 3 constrained all factor loadings and item intercepts. Multiple group CFAs and the differential item functioning (DIF) contrast under Rasch analyses were used to detect measurement invariance across males (n = 100) and females (n = 170) and across educational levels of junior high schools and below (n = 86) and senior high schools and above (n = 183). Results: The fit index differences between models supported the measurement invariance across gender and across educational levels (comparative fit index (CFI) = -0.010 and 0.003; root mean square error of approximation (RMSEA) = -0.006 to 0.004). No substantial DIF contrast was found across gender and educational levels (value = -0.36 to 0.29). Conclusions: The ZBI is appropriate for combined use and for comparisons in caregivers across gender and different educational levels in Taiwan.

AB - Background: The Zarit Burden Interview (ZBI) is a commonly used self-report to assess caregiver burden. A 12-item short form of the ZBI has been developed; however, its measurement invariance has not been examined across some different demographics. It is unclear whether different genders and educational levels of a population interpret the ZBI items similarly. Therefore, this study aimed to examine the measurement invariance of the 12-item ZBI across gender and educational levels in a Taiwanese sample. Methods: Caregivers who had a family member with dementia (n = 270) completed the ZBI through telephone interviews. Three confirmatory factor analysis (CFA) models were conducted: Model 1 was the configural model, Model 2 constrained all factor loadings, Model 3 constrained all factor loadings and item intercepts. Multiple group CFAs and the differential item functioning (DIF) contrast under Rasch analyses were used to detect measurement invariance across males (n = 100) and females (n = 170) and across educational levels of junior high schools and below (n = 86) and senior high schools and above (n = 183). Results: The fit index differences between models supported the measurement invariance across gender and across educational levels (comparative fit index (CFI) = -0.010 and 0.003; root mean square error of approximation (RMSEA) = -0.006 to 0.004). No substantial DIF contrast was found across gender and educational levels (value = -0.36 to 0.29). Conclusions: The ZBI is appropriate for combined use and for comparisons in caregivers across gender and different educational levels in Taiwan.

UR - http://www.scopus.com/inward/record.url?scp=85026498584&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85026498584&partnerID=8YFLogxK

U2 - 10.1017/S1041610217001417

DO - 10.1017/S1041610217001417

M3 - Article

C2 - 28760167

AN - SCOPUS:85026498584

VL - 29

SP - 1841

EP - 1848

JO - International Psychogeriatrics

JF - International Psychogeriatrics

SN - 1041-6102

IS - 11

ER -