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I Spy with My Little Eye: Jurors’ Detection of Internal Validity Threats in Expert Evidence

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dc.contributor.author McAuliff, B. D., & Duckworth, T. D.
dc.date.accessioned 2014-12-17T20:18:59Z
dc.date.available 2014-12-17T20:18:59Z
dc.date.issued 2010
dc.identifier.citation McAuliff, B. D., & Duckworth, T. D. (2010). I Spy with My Little Eye: Jurors’ Detection of Internal Validity Threats in Expert Evidence. Law and Human Behavior, 34(6), 489–500 en_US
dc.identifier.uri http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2911507/
dc.identifier.uri http://hdl.handle.net/11212/1982
dc.description.abstract This experiment examined whether jury-eligible community members (N = 223) were able to detect internally invalid psychological science presented at trial. Participants read a simulated child sexual abuse case in which the defense expert described a study he had conducted on witness memory and suggestibility. We varied the study's internal validity (valid, missing control group, confound, and experimenter bias) and publication status (published, unpublished). Expert evidence quality ratings were higher for the valid versus missing control group version only. Publication increased ratings of defendant guilt when the study was missing a control group. Variations in internal validity did not influence perceptions of child victim credibility or police interview quality. Participants' limited detection of internal validity threats underscores the need to examine the effectiveness of traditional legal safeguards against junk science in court and improve the scientific reasoning ability of lay people and legal professionals. en_US
dc.language.iso en_US en_US
dc.publisher Law and Human Behavior en_US
dc.subject research en_US
dc.subject scientific reasoning en_US
dc.subject expert testimony en_US
dc.subject internal validity en_US
dc.subject juror decision-making en_US
dc.subject child abuse en_US
dc.title I Spy with My Little Eye: Jurors’ Detection of Internal Validity Threats in Expert Evidence en_US
dc.type Article en_US


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