Media type: E-Article Title: Louis Guttman's Contributions to Classical Test Theory Contributor: Zimmerman, Donald W.; Williams, Richard H.; Zumbo, Bruno D.; Ross, Donald imprint: Informa UK Limited, 2005 Published in: International Journal of Testing Language: English DOI: 10.1207/s15327574ijt0501_7 ISSN: 1530-5058; 1532-7574 Keywords: Modeling and Simulation ; Education ; Social Psychology Origination: Footnote: