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Norwegian judges’ knowledge of factors affecting eyewitness testimony: a 12-year follow-up

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Eyewitness evidence often plays a critical role in decisions made in the criminal justice system. To evaluate eyewitness testimony accurately, judges must be aware of factors that can contaminate this type of evidence. In 2008, a survey of judges in Norway revealed a lack of awareness of several factors that affect eyewitness testimony. In the current study, a survey was administered to Norwegian judges (N=98) to evaluate their knowledge of factors that affect eyewitness testimony. Results showed that judges’ overall knowledge scores were similar to those reported in 2008, but substantial increases and decreases in knowledge were observed for specific factors. Additional analyses indicated that increased uncertainty regarding some eyewitness factors led to a decline in accuracy when compared to responses observed in 2008. The current study provides an updated assessment of judges’ knowledge of eyewitness factors and highlights the need for more comprehensive training for judges regarding these factors.
Original languageEnglish
Pages (from-to)1-18
Number of pages18
JournalPsychiatry, Psychology and Law
Early online date7 Dec 2020
Publication statusEarly online - 7 Dec 2020


  • Norwegian Judges' Knowledge of Factors

    Rights statement: This is an Accepted Manuscript of an article published by Taylor & Francis in Psychiatry, Psychology and Law on 7/12/2020, available online:

    Accepted author manuscript (Post-print), 437 KB, PDF document

    Due to publisher’s copyright restrictions, this document is not freely available to download from this website until: 7/12/21

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