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A Behavioural Test of Depression-Related Probability Bias

Booth, Robert W.; Gönül, Selen; Sözügür, B. Deniz; Khalid, Khadija


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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/285907</identifier>
  <creators>
    <creator>
      <creatorName>Booth, Robert W.</creatorName>
      <givenName>Robert W.</givenName>
      <familyName>Booth</familyName>
      <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0001-7614-4519</nameIdentifier>
      <affiliation>Sabanci Üniversitesi</affiliation>
    </creator>
    <creator>
      <creatorName>Gönül, Selen</creatorName>
      <givenName>Selen</givenName>
      <familyName>Gönül</familyName>
      <affiliation>Sabanci Üniversitesi</affiliation>
    </creator>
    <creator>
      <creatorName>Sözügür, B. Deniz</creatorName>
      <givenName>B. Deniz</givenName>
      <familyName>Sözügür</familyName>
      <affiliation>Sabanci Üniversitesi</affiliation>
    </creator>
    <creator>
      <creatorName>Khalid, Khadija</creatorName>
      <givenName>Khadija</givenName>
      <familyName>Khalid</familyName>
    </creator>
  </creators>
  <titles>
    <title>A Behavioural Test Of Depression-Related Probability Bias</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2024</publicationYear>
  <dates>
    <date dateType="Issued">2024-11-12</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/285907</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1080/02699931.2024.2425695</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="https://creativecommons.org/licenses/by-nc/4.0/">Creative Commons Attribution-NonCommercial</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;Individuals high in depressive symptom severity show probability bias: they believe negative&amp;nbsp;events are relatively probable, and positive events relatively improbable, compared to those&amp;nbsp;with less severe symptoms. However, this has only ever been demonstrated using self-report&amp;nbsp;measures, in which participants explicitly estimate events&amp;rsquo; probabilities: this leaves open the&amp;nbsp;risk that &amp;lsquo;probability bias&amp;rsquo; is merely an artefact of response bias. We tested the veracity of&amp;nbsp;probability bias using an indirect behavioural measure, based on a sentence-reading task.&amp;nbsp;Study 1 tested 112 Turkish students; Study 2 tested 117 international users of online groups&amp;nbsp;for people with depressive and anxiety disorders. As predicted, participants with higher&amp;nbsp;depressive symptom scores responded relatively quickly to sentences stating negative events&amp;nbsp;might occur, and relatively slowly to sentences stating positive events might occur, compared&amp;nbsp;to those with lower scores. This effect was only marginal in Study 1, but reached significance&amp;nbsp;in Study 2. However, contrary to predictions, this effect was not moderated by the probability&amp;nbsp;level stated in the sentence. This makes our findings difficult to interpret, and we must&amp;nbsp;present these studies as a failure to convincingly demonstrate depression-related probability&amp;nbsp;bias. We hope this stimulates more work on the nature and veracity of probability bias.&lt;/p&gt;</description>
  </descriptions>
  <fundingReferences>
    <fundingReference>
      <funderName>Türkiye Bilimsel ve Teknolojik Araştirma Kurumu</funderName>
      <funderIdentifier funderIdentifierType="Crossref Funder ID">https://doi.org/10.13039/501100004410</funderIdentifier>
      <awardNumber>119K358</awardNumber>
    </fundingReference>
  </fundingReferences>
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