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The Effect of Presuming Guilt in Assessing Credibility of Child Sexual Abuse Allegations

Korean Journal of Social and Personality Psychology / Korean Journal of Social and Personality Psychology, (P)1229-0653;
2020, v.34 no.2, pp.37-53
https://doi.org/10.21193/kjspp.2020.34.2.003

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Abstract

The purpose of this study was to investigate the effects of evaluators’ presumption of guilty/innocent conviction of child sexual abuse cases on assessing credibility of allegedly abused child victims’ statements with CBCA(Criteria-Based Content Analysis). Total 44 CBCA experts and non-experts participated in the experiment. A half of them were provided with evidence tending to prove the suspect’s guilt, whereas the other half were provided with evidence of presumably not guilt, before they evaluated the existing 19 CBCA criteria and statement credibility and suspicion in general with the same case. The results showed that the guilt-biased group had significantly higher total CBCA scores than the innocent-biased group did, with higher scores in Criterion1(logical consistency) and Criterion4(reported accurately but not understood). The expert group evaluated significantly more CBCA criteria existed than the non-expert group but there was no significant interaction effect of guilty/innocent presumption and their expertise. Lastly, this study discussed cognitive bias possibly related when assessing credibility of child sexual abuse allegation and ways of reducing the potential for biased judgements.

keywords
인지적 편향, 진술분석, CBCA, 진술분석전문가, 유죄심증, Conformation bias, Statement Validity Assessment, CBCA, expert, guilt-bias

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Korean Journal of Social and Personality Psychology