{"status":"OK","data":{"id":600154,"identifier":"HCYPZY","persistentUrl":"https://doi.org/10.34894/HCYPZY","protocol":"doi","authority":"10.34894","separator":"/","publisher":"DataverseNL","publicationDate":"2026-01-29","storageIdentifier":"surf://10.34894/HCYPZY","effectiveDatasetFileCountLimit":10000,"datasetFileUploadsAvailable":9999,"datasetType":"dataset","locks":[],"latestVersion":{"id":33705,"datasetId":600154,"datasetPersistentId":"doi:10.34894/HCYPZY","datasetType":"dataset","storageIdentifier":"surf://10.34894/HCYPZY","versionNumber":1,"internalVersionNumber":11,"versionMinorNumber":0,"versionState":"RELEASED","latestVersionPublishingState":"RELEASED","lastUpdateTime":"2026-01-29T07:39:38Z","releaseTime":"2026-01-29T07:39:38Z","createTime":"2026-01-26T09:40:38Z","publicationDate":"2026-01-29","citationDate":"2026-01-29","effectiveDatasetFileCountLimit":10000,"datasetFileUploadsAvailable":9999,"termsOfUse":"Our data, or part of the data,  has been set to restrictive because the data is pseudonymous and therefore subject to the EU GDPR privacy regulations. \nAccording to our policy, the researcher who deposited the data will be informed about the access request. The depositor of the data might contact the requester for further consultation about the (re)use of the data. If the researcher decides to make the data available an agreement needs to be signed. \nIf this dataset also contains unrestricted data, a 'cc-zero public domain dedication' applies to these unrestricted data.\n","termsOfAccess":"Our data, or part of the data,  has been set to restrictive because the data is pseudonymous and therefore subject to the EU GDPR privacy regulations. \nAccording to our policy, the researcher who deposited the data will be informed about the access request. The depositor of the data might contact the requester for further consultation about the (re)use of the data. If the researcher decides to make the data available an agreement needs to be signed. \nIf this dataset also contains unrestricted data, a 'cc-zero public domain dedication' applies to these unrestricted data.\n","fileAccessRequest":true,"metadataBlocks":{"citation":{"displayName":"Citation Metadata","name":"citation","fields":[{"typeName":"title","multiple":false,"typeClass":"primitive","value":"Facilitating Falsification: Devil’s Advocacy in Dutch Police Investigations"},{"typeName":"author","multiple":true,"typeClass":"compound","value":[{"authorName":{"typeName":"authorName","multiple":false,"typeClass":"primitive","value":"Nieuwkamp, Veerle"},"authorAffiliation":{"typeName":"authorAffiliation","multiple":false,"typeClass":"primitive","value":"Maastricht University"},"authorIdentifierScheme":{"typeName":"authorIdentifierScheme","multiple":false,"typeClass":"controlledVocabulary","value":"ORCID"},"authorIdentifier":{"typeName":"authorIdentifier","multiple":false,"typeClass":"primitive","value":"0009-0000-8941-678X"}},{"authorName":{"typeName":"authorName","multiple":false,"typeClass":"primitive","value":"Maegherman, Enide"},"authorAffiliation":{"typeName":"authorAffiliation","multiple":false,"typeClass":"primitive","value":"European Association of Psychology and Law, Maastricht University"},"authorIdentifierScheme":{"typeName":"authorIdentifierScheme","multiple":false,"typeClass":"controlledVocabulary","value":"ORCID"},"authorIdentifier":{"typeName":"authorIdentifier","multiple":false,"typeClass":"primitive","value":"0000-0001-9872-0708"}},{"authorName":{"typeName":"authorName","multiple":false,"typeClass":"primitive","value":"Bogaard, Glynis"},"authorAffiliation":{"typeName":"authorAffiliation","multiple":false,"typeClass":"primitive","value":"Maastricht University"},"authorIdentifierScheme":{"typeName":"authorIdentifierScheme","multiple":false,"typeClass":"controlledVocabulary","value":"ORCID"},"authorIdentifier":{"typeName":"authorIdentifier","multiple":false,"typeClass":"primitive","value":"0000-0001-6795-9433"}}]},{"typeName":"datasetContact","multiple":true,"typeClass":"compound","value":[{"datasetContactName":{"typeName":"datasetContactName","multiple":false,"typeClass":"primitive","value":"faculty data manager FPN"},"datasetContactAffiliation":{"typeName":"datasetContactAffiliation","multiple":false,"typeClass":"primitive","value":"Maastricht University"}},{"datasetContactName":{"typeName":"datasetContactName","multiple":false,"typeClass":"primitive","value":"Bogaard, Glynis"},"datasetContactAffiliation":{"typeName":"datasetContactAffiliation","multiple":false,"typeClass":"primitive","value":"Maastricht University"}}]},{"typeName":"dsDescription","multiple":true,"typeClass":"compound","value":[{"dsDescriptionValue":{"typeName":"dsDescriptionValue","multiple":false,"typeClass":"primitive","value":"Confirmation bias has been identified as a recurrent cause of wrongful convictions. To mitigate the risk of this bias, police investigators should devote effort to exploring and attempting to falsify alternative hypotheses about a crime. In the Netherlands, investigators in complex capital crime investigations are instructed to apply devil’s advocacy (DA) to increase discussion and testing of alternative investigative theories. This study provides a first quantitative examination of whether DA influences reasoning about evidence in crime investigations. Police investigators who regularly work with DA (n = 63), investigators who do not (n = 76), and laypersons (n = 88) read a fictional investigation report and judged the likelihood that the prime suspect was guilty both before and after asking follow-up questions and receiving additional information. None of the groups clearly demonstrated confirmation bias. Contrary to prediction, experience with DA was not associated with greater falsification efforts. DA-experienced investigators showed a preference for asking falsifying questions only when compared to laypersons and without translating in greater adjustment of guilt-likelihood judgments. Overall, however, falsification efforts were associated with a reduction in guilt-likelihood judgments. Implications for future research and practice are discussed."}}]},{"typeName":"subject","multiple":true,"typeClass":"controlledVocabulary","value":["Social Sciences"]},{"typeName":"keyword","multiple":true,"typeClass":"compound","value":[{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"confirmation bias"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"falsification"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"criminal investigations"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"evidence"}}]},{"typeName":"depositor","multiple":false,"typeClass":"primitive","value":"Faculty of Psychology and Neuroscience - Maastricht University"},{"typeName":"dateOfDeposit","multiple":false,"typeClass":"primitive","value":"2026-01-26"},{"typeName":"dateOfCollection","multiple":true,"typeClass":"compound","value":[{"dateOfCollectionStart":{"typeName":"dateOfCollectionStart","multiple":false,"typeClass":"primitive","value":"2024-11-03"},"dateOfCollectionEnd":{"typeName":"dateOfCollectionEnd","multiple":false,"typeClass":"primitive","value":"2024-12-11"}}]},{"typeName":"kindOfData","multiple":true,"typeClass":"primitive","value":["survey data"]}]},"dansDataVaultMetadata":{"displayName":"Data Vault Metadata","name":"dansDataVaultMetadata","fields":[{"typeName":"dansDataversePid","multiple":false,"typeClass":"primitive","value":"doi:10.34894/HCYPZY"},{"typeName":"dansDataversePidVersion","multiple":false,"typeClass":"primitive","value":"1.0"},{"typeName":"dansBagId","multiple":false,"typeClass":"primitive","value":"urn:uuid:df024352-ce2d-43e0-8a70-c5657bce951b"},{"typeName":"dansNbn","multiple":false,"typeClass":"primitive","value":"urn:nbn:nl:ui:13-1fe18374-fde9-4acb-882f-eef6f63f8e3c"}]}},"files":[{"label":"Data devil's advocacy study.sav","restricted":true,"version":1,"datasetVersionId":33705,"dataFile":{"id":600155,"persistentId":"","filename":"Data devil's advocacy study.sav","contentType":"application/x-spss-sav","friendlyType":"SPSS Binary","filesize":12201,"storageIdentifier":"surf://store:19bf9ada071-32dfb230f0ae","rootDataFileId":-1,"checksum":{"type":"SHA-1","value":"c64138365cab1dea8cc5733c2fb1b3ca8e312aec"},"tabularData":false,"creationDate":"2026-01-26","publicationDate":"2026-01-29","lastUpdateTime":"2026-01-29T07:39:38Z","fileAccessRequest":true}}]}}}