University of Twente Student Theses
How Guilt Presumptions and Evidence-Strength influence Interviewers Judgements of Guilt, Judgements of Believability, and their Intention to Further Investigate
Sauer, Jonah (2022) How Guilt Presumptions and Evidence-Strength influence Interviewers Judgements of Guilt, Judgements of Believability, and their Intention to Further Investigate.
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| Abstract: | The police and innocent suspects suffer from poor investigative decisions. The PEACE framework focused on an unbiased approach toward investigative interviews, aimed at reducing poor investigative decisions. Evidence-Strength and Guilt Presumptions were found guiding perceptions of interviewers about the suspect, which thereby guide investigative decisions. This study aimed to show the influence of Evidence-Strength and Guilt Presumptions on a number of investigative judgements. A scripted interview was carried out with 70 participants, accompanied with questionnaires. Experimental design was 2x2 factorial with Evidence-Strength (weak vs. strong) and Guilt Presumptions (Guilty vs. Not Guilty) as IVs. Guilt Judgements were shifted after exposure to explanation of the innocent suspect. Manipulations of Evidence-Strength caused confirmation bias. Information retrieval practices were kept consistent through the scripted interview and thus were able to reduce confirmation bias effects. This might in practice lead to reduction of poor investigative decisions. |
| Item Type: | Essay (Bachelor) |
| Faculty: | BMS: Behavioural, Management and Social Sciences |
| Subject: | 77 psychology |
| Programme: | Psychology BSc (56604) |
| Link to this item: | https://purl.utwente.nl/essays/91459 |
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