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This unit outlines the history of ID research and findings, discusses issues with past rubrics, and then presents an operationalized method for the systematic measurement of ID in language samples, with an extensive manual available as a supplement to this unit (Analysis of Idea Density, AID). Finally, reliability statistics for this rubric in the context of dementia research on aging populations and verification that AID can replicate the significant association between ID and late\u2010life cognition are presented. <jats:italic>Curr. Protoc. Neurosci<\/jats:italic>. 58:10.5.1\u201010.5.15. \u00a9 2012 by John Wiley &amp; Sons, Inc.<\/jats:p>","DOI":"10.1002\/0471142301.ns1005s58","type":"journal-article","created":{"date-parts":[[2012,1,3]],"date-time":"2012-01-03T19:26:43Z","timestamp":1325618803000},"source":"Crossref","is-referenced-by-count":17,"title":["A Rubric for Extracting Idea Density from Oral Language Samples"],"prefix":"10.1002","volume":"58","author":[{"given":"Vineeta","family":"Chand","sequence":"first","affiliation":[{"name":"Department of Language and Linguistics, University of Essex  Colchester United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kathleen","family":"Baynes","sequence":"additional","affiliation":[{"name":"Center for Mind and Brain, University of California at Davis  Davis California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lisa M.","family":"Bonnici","sequence":"additional","affiliation":[{"name":"Department of Linguistics, University of California at Davis  Davis California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sarah Tomaszewski","family":"Farias","sequence":"additional","affiliation":[{"name":"Department of Language and Linguistics, University of Essex  Colchester United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2012,1]]},"reference":[{"key":"e_1_2_16_2_1","doi-asserted-by":"publisher","DOI":"10.1080\/02699200410001698599"},{"key":"e_1_2_16_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.acn.2007.01.005"},{"key":"e_1_2_16_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/0093-934X(92)90079-T"},{"key":"e_1_2_16_5_1","volume-title":"Idea density as a measure of communicative skill in Alzheimer's Disease","author":"Baynes K.","year":"2007"},{"key":"e_1_2_16_6_1","volume-title":"Longman Grammar of Spoken and Written English","author":"Biber D.","year":"1999"},{"key":"e_1_2_16_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.acn.2007.01.010"},{"key":"e_1_2_16_8_1","doi-asserted-by":"publisher","DOI":"10.3758\/BRM.40.2.540"},{"key":"e_1_2_16_9_1","doi-asserted-by":"publisher","DOI":"10.3758\/BRM.41.4.977"},{"key":"e_1_2_16_10_1","doi-asserted-by":"publisher","DOI":"10.1080\/13854040590947489"},{"key":"e_1_2_16_11_1","first-page":"217","volume-title":"Discourse Analysis and Applications: Studies in Adult Clinical Populations","author":"Causino Lamar M.A.","year":"1994"},{"key":"e_1_2_16_12_1","first-page":"105","volume-title":"Literacy, Language, and Learning","author":"Chafe W.","year":"1985"},{"key":"e_1_2_16_13_1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.an.16.100187.002123"},{"key":"e_1_2_16_14_1","doi-asserted-by":"publisher","DOI":"10.1017\/S1355617707070257"},{"key":"e_1_2_16_15_1","volume-title":"CPIDR 3 User Manual. 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