Research and analysis
Inter-rater reliability of the Extremism Risk Guidelines 22+ (ERG 22+)
This study examines the Inter-rater reliability of the Extremism Risk Guidelines (ERG22+), which has been in use across Her Majesty’s Prison and Probation Service of England and Wales since 2011.
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The study examined two approaches to Inter-rater reliability of the ERG 22+; it examined research reliability, which tested reliability in ‘research’ conditions between expert raters, and field reliability which tested reliability among practitioners using the measure in the field.
Updates to this page
Published 31 October 2019