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A structured expert judgement elicitation approach : how can it inform sound intervention decision-making to support household food security?

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Kleve, Suzanne and Barons, Martine J. (2021) A structured expert judgement elicitation approach : how can it inform sound intervention decision-making to support household food security? Public Health Nutrition, 24 (8). pp. 2050-2061. doi:10.1017/S1368980021000525 ISSN 1368-9800.

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Official URL: https://doi.org/10.1017/S1368980021000525

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Abstract

Objective:
To examine structured expert judgement (SEJ) elicitation as a method to provide robust, defensible data for three determinants of household food security (food cost, household disposable income and physical access) for quantifying a proof-of-concept integrating decision support system for food security.

Design:
SEJ elicitation is a validated method for obtaining unavailable data, but its use in household food security in high-income countries is novel. Investigate Discuss Estimate Aggregate (IDEA) elicitation protocol was implemented, including quantitative and qualitative elements. Using specific questions related to three determinants, food security experts were encouraged to Investigate – estimate individual first-round responses to these questions, Discuss – with each other evidence on the reasoning and logic of their estimates, Estimate – second-round responses, following which these judgements were combined using mathematical Aggregation.

Setting:
Victoria, Australia.

Participants:
Five experts with a range of expertise in the area of household food insecurity participated in the SEJ elicitation process.

Results:
The experts’ ability to provide reliable estimates was tested and informed the aggregation of the collection of individual estimates into a single quantity of interest for use in decision support. The results of the quantitative elicitation show the impact of combinations of varying household income, food cost and physical access on household food security status and severity and is supported by the experts reasoning during elicitation.

Conclusion
This research provides insight to the application of SEJ where elicited data can inform and support intervention decision-making specific to household food security, especially where evidence is absent or of poor quality.

Item Type: Journal Article
Subjects: B Philosophy. Psychology. Religion > BF Psychology
H Social Sciences > HD Industries. Land use. Labor
Divisions: Faculty of Science, Engineering and Medicine > Science > Statistics
Library of Congress Subject Headings (LCSH): Decision making, Food security, Elicitation
Journal or Publication Title: Public Health Nutrition
Publisher: Cambridge University Press
ISSN: 1368-9800
Official Date: June 2021
Dates:
DateEvent
June 2021Published
5 February 2021Available
5 February 2021Accepted
Volume: 24
Number: 8
Page Range: pp. 2050-2061
DOI: 10.1017/S1368980021000525
Status: Peer Reviewed
Publication Status: Published
Reuse Statement (publisher, data, author rights): This article has been published in a revised form in Public Health Nutrition [http://doi.org/10.1017/S1368980021000525. This version is free to view and download for private research and study only. Not for re-distribution, re-sale or use in derivative works. © © The Author(s), 2021.
Access rights to Published version: Free Access (unspecified licence, 'bronze OA')
Copyright Holders: © The Author(s), 2021. Published by Cambridge University Press on behalf of The Nutrition Society
Description:

Free access

Date of first compliant deposit: 5 August 2021
Date of first compliant Open Access: 15 February 2023

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