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Lookup NU author(s): Professor Jacqueline Rodgers
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There is growing evidence that Internet-mediated psychological tests can have satisfactory psychometric properties and can measure the same constructs as traditional versions. However, equivalence cannot be taken for granted. The prospective memory questionnaire (PMQ; Hannon, Adams, Harrington, Fries-Dias, & Gibson, 1995) was used in an on-line study exploring links between drug use and memory (Rodgers et al., 2003). The PMQ has four factor-analytically derived subscales. In a large (N = 763) sample tested via the Internet, only two factors could be recovered; the other two subscales were essentially meaningless. This demonstration of nonequivalence underlines the importance of on-line test validation. Without examination of its psychometric properties, one cannot be sure that a test administered via the Internet actually measures the intended construct. Copyright 2005 Psychonomic Society, Inc.
Author(s): Buchanan T, Ali T, Heffernan TM, Ling J, Parrott AC, Rodgers J, Scholey AB
Publication type: Article
Publication status: Published
Journal: Behavior Research Methods
Print publication date: 01/02/2005
ISSN (print): 1554-351X
ISSN (electronic): 1554-3528
Publisher: Psychonomic Society, Inc.
PubMed id: 16097355