http://epm.sagepub.com/ Measurement Educational and Psychological http://epm.sagepub.com/content/early/2011/05/12/0013164411402324 The online version of this article can be found at: DOI: 10.1177/0013164411402324 published online 13 May 2011 Educational and Psychological Measurement Dimiter M. Dimitrov and Dimitar V. Atanasov Model of Cognitive Diagnosis Conjunctive and Disjunctive Extensions of the Least Squares Distance Published by: http://www.sagepublications.com at: can be found Educational and Psychological Measurement Additional services and information for http://epm.sagepub.com/cgi/alerts Email Alerts: http://epm.sagepub.com/subscriptions Subscriptions: http://www.sagepub.com/journalsReprints.nav Reprints: http://www.sagepub.com/journalsPermissions.nav Permissions: at GEORGE MASON UNIV on May 14, 2011 epm.sagepub.com Downloaded from