Anchoring in action: Manual estimates of slant are powerfully biased toward initial hand orientation and are correlated with verbal report
Identifieur interne : 002E27 ( Ncbi/Merge ); précédent : 002E26; suivant : 002E28Anchoring in action: Manual estimates of slant are powerfully biased toward initial hand orientation and are correlated with verbal report
Auteurs : Dennis M. Shaffer ; Eric Mcmanama ; Charles Swank ; Morgan Williams ; Frank H. DurginSource :
- Journal of experimental psychology. Human perception and performance [ 0096-1523 ] ; 2014.
Abstract
People verbally overestimate hill slant by ~15–25° whereas manual estimates (e.g., palm board measures) are thought to be more accurate. The relative accuracy of palm boards has contributed to the widely cited theoretical claim that they tap into an accurate, but unconscious motor representation of locomotor space. In the current work, four replications (total N = 204) carried out by two different laboratories tested an alternative, anchoring hypothesis that manual action measures give low estimates because they are always initiated from horizontal. The results of all four replications indicate that the bias from response anchoring can entirely account for the difference between manual and verbal estimates. Moreover consistent correlations between manual and verbal estimates given by the same observers support the conclusion that both measures are based on the same visual representation. Concepts from the study of judgment under uncertainty apply even to action measures in information rich environments.
Url:
DOI: 10.1037/a0036217
PubMed: 24661067
PubMed Central: 4218750
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<pmc-dir>properties manuscript</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-journal-id">7502589</journal-id><journal-id journal-id-type="pubmed-jr-id">4732</journal-id><journal-id journal-id-type="nlm-ta">J Exp Psychol Hum Percept Perform</journal-id><journal-id journal-id-type="iso-abbrev">J Exp Psychol Hum Percept Perform</journal-id><journal-title-group><journal-title>Journal of experimental psychology. Human perception and performance</journal-title></journal-title-group><issn pub-type="ppub">0096-1523</issn><issn pub-type="epub">1939-1277</issn></journal-meta><article-meta><article-id pub-id-type="pmid">24661067</article-id><article-id pub-id-type="pmc">4218750</article-id><article-id pub-id-type="doi">10.1037/a0036217</article-id><article-id pub-id-type="manuscript">NIHMS638206</article-id><article-categories><subj-group subj-group-type="heading"><subject>Article</subject></subj-group></article-categories><title-group><article-title>Anchoring in action: Manual estimates of slant are powerfully biased toward initial hand orientation and are correlated with verbal report</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Shaffer</surname><given-names>Dennis M.</given-names></name><aff id="A1">The Ohio State University—Mansfield</aff></contrib><contrib contrib-type="author"><name><surname>McManama</surname><given-names>Eric</given-names></name><aff id="A2">The Ohio State University—Mansfield</aff></contrib><contrib contrib-type="author"><name><surname>Swank</surname><given-names>Charles</given-names></name><aff id="A3">The Ohio State University—Mansfield</aff></contrib><contrib contrib-type="author"><name><surname>Williams</surname><given-names>Morgan</given-names></name><aff id="A4">Swarthmore College</aff></contrib><contrib contrib-type="author"><name><surname>Durgin</surname><given-names>Frank H.</given-names></name><aff id="A5">Swarthmore College</aff></contrib></contrib-group><author-notes><corresp id="FN1">Correspondence concerning this article may be addressed to Dennis M. Shaffer, Department of Psychology, The Ohio State University--Mansfield, 1760 University Drive, Mansfield, OH 44906. <email>shaffer.247@osu.edu</email> or to Frank H. Durgin, Department of Psychology, Swarthmore College, 500 College Ave, Swarthmore, PA 19081. <email>fdurgin1@swarthmore.edu</email></corresp><fn id="FN2"><p>Dennis M. Shaffer, Eric McManama, Charles Swank, Department of Psychology, Ohio State University; Morgan Williams, Frank H. Durgin, Department of Psychology, Swarthmore College.</p></fn></author-notes><pub-date pub-type="nihms-submitted"><day>28</day><month>10</month><year>2014</year></pub-date><pub-date pub-type="epub"><day>24</day><month>3</month><year>2014</year></pub-date><pub-date pub-type="ppub"><month>6</month><year>2014</year></pub-date><pub-date pub-type="pmc-release"><day>01</day><month>6</month><year>2015</year></pub-date><volume>40</volume><issue>3</issue><fpage>1203</fpage><lpage>1212</lpage><pmc-comment>elocation-id from pubmed: 10.1037/a0036217</pmc-comment>
<abstract><p id="P1">People verbally overestimate hill slant by ~15–25° whereas manual estimates (e.g., palm board measures) are thought to be more accurate. The relative accuracy of palm boards has contributed to the widely cited theoretical claim that they tap into an accurate, but unconscious motor representation of locomotor space. In the current work, four replications (total N = 204) carried out by two different laboratories tested an alternative, anchoring hypothesis that manual action measures give low estimates because they are always initiated from horizontal. The results of all four replications indicate that the bias from response anchoring can entirely account for the difference between manual and verbal estimates. Moreover consistent correlations between manual and verbal estimates given by the same observers support the conclusion that both measures are based on the same visual representation. Concepts from the study of judgment under uncertainty apply even to action measures in information rich environments.</p></abstract><kwd-group><kwd>Geographical slant</kwd><kwd>action measures</kwd><kwd>anchoring</kwd><kwd>two-systems</kwd></kwd-group></article-meta></front></pmc><affiliations><list></list><tree><noCountry><name sortKey="Durgin, Frank H" sort="Durgin, Frank H" uniqKey="Durgin F" first="Frank H." last="Durgin">Frank H. Durgin</name><name sortKey="Mcmanama, Eric" sort="Mcmanama, Eric" uniqKey="Mcmanama E" first="Eric" last="Mcmanama">Eric Mcmanama</name><name sortKey="Shaffer, Dennis M" sort="Shaffer, Dennis M" uniqKey="Shaffer D" first="Dennis M." last="Shaffer">Dennis M. Shaffer</name><name sortKey="Swank, Charles" sort="Swank, Charles" uniqKey="Swank C" first="Charles" last="Swank">Charles Swank</name><name sortKey="Williams, Morgan" sort="Williams, Morgan" uniqKey="Williams M" first="Morgan" last="Williams">Morgan Williams</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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