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Assessing knowledge and attitudes about end of life: Evaluation of three instruments designed for adults with intellectual disability

Assessing knowledge and attitudes about end of life: Evaluation of three instruments designed for adults with intellectual disability Thumbnail


Abstract

Background
This paper examines the development and psychometric characteristics of three instruments about end of life, designed for use with adults with intellectual disability (ID). Respectively, the instruments assess understanding of the concept of death, end-of-life planning, and fear of death.

Methods
Part 1: instruments were developed or adapted, and pilot tested with 11 adults with ID and 2 disability staff. Part 2: 39 adults with ID and 40 disability staff were assessed on all three instruments.

Results
We evaluated comprehensibility, internal consistency, inter-rater reliability, subscale: total score correlations, missing data, and withdrawal. Psychometric findings were mostly good. Overall, 23% of participants with ID withdrew at some point. This outcome may have been as much due to assessment fatigue as to sensitive content. There were no adverse events.

Conclusions
People with ID can reliably complete assessments about end-of-life. Generally, each instrument was found to be comprehensible, reliable and valid.

Acceptance Date Mar 9, 2017
Publication Date May 24, 2017
Publicly Available Date Mar 28, 2024
Journal Journal of Applied Research in Intellectual Disabilities
Print ISSN 1360-2322
Publisher Wiley
Pages 1076-1088
DOI https://doi.org/10.1111/jar.12358
Keywords intellectual disability; end of life; assessment; death; staff; planning; fear of death; questionnaire
Publisher URL https://doi.org/10.1111/jar.12358

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