Guidance on the use of the weight of evidence approach in scientific assessments

Tabs

Article
risk assessment, weight of evidence, biological relevance, uncertainty, lines of evidence
First published in the EFSA Journal
3 August 2017
Adopted
12 July 2017
Type
Guidance
Abstract

EFSA requested the Scientific Committee to develop a guidance document on the use of the weight of evidence approach in scientific assessments for use in all areas under EFSA's remit. The guidance document addresses the use of weight of evidence approaches in scientific assessments using both qualitative and quantitative approaches. Several case studies covering the various areas under EFSA's remit are annexed to the guidance document to illustrate the applicability of the proposed approach. Weight of evidence assessment is defined in this guidance as a process in which evidence is integrated to determine the relative support for possible answers to a question. This document considers the weight of evidence assessment as comprising three basic steps: (1) assembling the evidence into lines of evidence of similar type, (2) weighing the evidence, (3) integrating the evidence. The present document identifies reliability, relevance and consistency as three basic considerations for weighing evidence.

Panel members at the time of adoption
Anthony Hardy, Diane Benford, Thorhallur Halldorsson, Michael John Jeger,Helle Katrine Knutsen, Simon More, Hanspeter Naegeli, Hubert Noteborn, Colin Ockleford, Antonia Ricci, Guido Rychen, Josef R Schlatter, Vittorio Silano, Roland Solecki, Dominique Turck and Maged Younes.
Scientific Committee
Contact
sc.secretariat [at] efsa.europa.eu
doi
10.2903/j.efsa.2017.4971
EFSA Journal 2017;15(8):4971 [69 pp.].
Question Number
On request from
EFSA Scientific Committee
Print on demand
Number of Pages
69