PT - JOURNAL ARTICLE AU - Ian J Deary AU - G David Batty TI - Cognitive epidemiology AID - 10.1136/jech.2005.039206 DP - 2007 May 01 TA - Journal of Epidemiology and Community Health PG - 378--384 VI - 61 IP - 5 4099 - http://jech.bmj.com/content/61/5/378.short 4100 - http://jech.bmj.com/content/61/5/378.full SO - J Epidemiol Community Health2007 May 01; 61 AB - This glossary provides a guide to some concepts, findings and issues of discussion in the new field of research in which intelligence test scores are associated with mortality and morbidity. Intelligence tests are devised and studied by differential psychologists. Some of the major concepts in differential psychology are explained, especially those regarding cognitive ability testing. Some aspects of IQ (intelligence) tests are described and some of the major tests are outlined. A short guide is given to the main statistical techniques used by differential psychologists in the study of human mental abilities. There is a discussion of common epidemiological concepts in the context of cognitive epidemiology.