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quantitative model. I begin with the assumption that objects are represented in terms of constit uent dimensions and that the representation of objects changes little with development. Given this assumption, the model has three major parts. First, the similarity between objects is a function of the combination of the constituent dimensional differences. 1 propose developmental change in the likelihood that dimensions are differentially weighted in the calculation of similarity. Second, the perceived similarities between objects are valued for the purpose of constructing classifications. I propose that similarities are valued more dichotomously with age, such that identity becomes in creasingly special. Third, the valued similarities are used to choose the best classification of those possible. The model provides good qualitative fits to the extant data. Three experiments examining classifications in 2 to 8 year olds and in adults support specific new claims of the model. The data and the model provide new insights about development, classification, and similarity.","publication_date":"1989,1,1","publication_name":"Psychological Review","grobid_abstract_attachment_id":"4162885"},"document_type":"paper","pre_hit_view_count_baseline":0,"quality":"high","language":"en","title":"A model of perceptual classification in children and adults.","broadcastable":true,"draft":null,"has_indexable_attachment":true,"indexable":true}}["work"]; window.loswp.workCoauthors = [14059]; window.loswp.locale = "en"; window.loswp.countryCode = "SG"; window.loswp.cwvAbTestBucket = ""; window.loswp.designVariant = "ds_vanilla"; window.loswp.fullPageMobileSutdModalVariant = "control"; window.loswp.useOptimizedScribd4genScript = false; window.loswp.appleClientId = 'edu.academia.applesignon';</script><script defer="" src="https://accounts.google.com/gsi/client"></script><div class="ds-loswp-container"><div class="ds-work-card--grid-container"><div class="ds-work-card--container js-loswp-work-card"><div class="ds-work-card--cover"><div class="ds-work-cover--wrapper"><div class="ds-work-cover--container"><button class="ds-work-cover--clickable js-swp-download-button" data-signup-modal="{"location":"swp-splash-paper-cover","attachmentId":4162885,"attachmentType":"pdf"}"><img alt="First page of “A model of perceptual classification in children and adults.”" class="ds-work-cover--cover-thumbnail" src="https://0.academia-photos.com/attachment_thumbnails/4162885/mini_magick20190427-17742-17qg1ku.png?1556378847" /><img alt="PDF Icon" class="ds-work-cover--file-icon" src="//a.academia-assets.com/assets/single_work_splash/adobe.icon-574afd46eb6b03a77a153a647fb47e30546f9215c0ee6a25df597a779717f9ef.svg" /><div class="ds-work-cover--hover-container"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">download</span><p>Download Free PDF</p></div><div class="ds-work-cover--ribbon-container">Download Free PDF</div><div class="ds-work-cover--ribbon-triangle"></div></button></div></div></div><div class="ds-work-card--work-information"><h1 class="ds-work-card--work-title">A model of perceptual classification in children and adults.</h1><div class="ds-work-card--work-authors ds-work-card--detail"><a class="ds-work-card--author js-wsj-grid-card-author ds2-5-body-md ds2-5-body-link" data-author-id="14059" href="https://indiana.academia.edu/LindaBSmith"><img alt="Profile image of Linda B Smith" class="ds-work-card--author-avatar" src="//a.academia-assets.com/images/s65_no_pic.png" />Linda B Smith</a></div><div class="ds-work-card--detail"><p class="ds-work-card--detail ds2-5-body-sm">1989, Psychological Review</p><div class="ds-work-card--work-metadata"><div class="ds-work-card--work-metadata__stat"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">visibility</span><p class="ds2-5-body-sm" id="work-metadata-view-count">…</p></div><div class="ds-work-card--work-metadata__stat"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">description</span><p class="ds2-5-body-sm">20 pages</p></div><div class="ds-work-card--work-metadata__stat"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">link</span><p class="ds2-5-body-sm">1 file</p></div></div><script>(async () => { const workId = 730248; 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This developmental trend is typically discussed in terms of a shift from comparing wholes to comparing parts. The present study investigates if the trend reflects more than one developing ability. 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class="ds-related-work--metadata ds2-5-body-xs">Cognitive Development, 2011</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Developmental differences in shape processing","attachmentId":41635027,"attachmentType":"pdf","work_url":"https://www.academia.edu/20933227/Developmental_differences_in_shape_processing","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/20933227/Developmental_differences_in_shape_processing"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" 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Nosofsky</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Perception &amp; Psychophysics, 1989</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Further tests of an exemplar-similarity approach to relating identification and categorization","attachmentId":119167799,"attachmentType":"pdf","work_url":"https://www.academia.edu/125055160/Further_tests_of_an_exemplar_similarity_approach_to_relating_identification_and_categorization","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" 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ds2-5-body-xs">2008</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"A Model of Human Categorization and Similarity Based Upon Category Theory","attachmentId":108707516,"attachmentType":"pdf","work_url":"https://www.academia.edu/111091110/A_Model_of_Human_Categorization_and_Similarity_Based_Upon_Category_Theory","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/111091110/A_Model_of_Human_Categorization_and_Similarity_Based_Upon_Category_Theory"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" 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href="https://www.academia.edu/77006156/UC_Merced_Proceedings_of_the_Annual_Meeting_of_the_Cognitive_Science_Society_Title_Metrical_Categories_in_Infancy_and_Adulthood_Permalink_Publication_Date_Metrical_Categories_in_Infancy_and_Adulthood">UC Merced Proceedings of the Annual Meeting of the Cognitive Science Society Title Metrical Categories in Infancy and Adulthood Permalink Publication Date Metrical Categories in Infancy and Adulthood</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="3873217" href="https://utoronto.academia.edu/SandraTrehub">Sandra Trehub</a></div><p class="ds-related-work--metadata ds2-5-body-xs">2003</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"UC Merced Proceedings of the Annual Meeting of the Cognitive Science Society Title Metrical 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class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="20" data-entity-id="14640326" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/14640326/Hierarchical_learning_of_dimensional_biases_in_human_categorization">Hierarchical learning of dimensional biases in human categorization</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="33592767" href="https://warwick.academia.edu/AdamSanborn">Adam Sanborn</a><span>, </span><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="27269231" href="https://independent.academia.edu/NChater">Nick Chater</a></div><p class="ds-related-work--metadata ds2-5-body-xs">2009</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" 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href="https://www.academia.edu/85766664/Parts_and_Relations_in_Young_Childrens_Shape_Based_Object_Recognition">Parts and Relations in Young Children's Shape-Based Object Recognition</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="14059" href="https://indiana.academia.edu/LindaBSmith">Linda B Smith</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Journal of Cognition and Development, 2011</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Parts and Relations in Young Children's Shape-Based Object Recognition","attachmentId":90367447,"attachmentType":"pdf","work_url":"https://www.academia.edu/85766664/Parts_and_Relations_in_Young_Childrens_Shape_Based_Object_Recognition","alternativeTracking":true}"><span class="material-symbols-outlined" 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class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="1574" href="https://indiana.academia.edu/RobertMNosofsky">Robert M. 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