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Lookup NU author(s): Professor Jacqueline Rodgers
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This article describes a short self-report measure of problems with executive function designed for use in Internet-mediated research. In Study 1, participants completed the online measure (Webexec) using a browser but under laboratory conditions. They also completed a paper self-report measure of executive problems (the Dysexecutive Questionnaire; DEX) and three objective tasks involving executive function: reverse digit span, semantic fluency (unconstrained), and semantic fluency (constrained). Webexec scores correlated positively with the DEX and negatively with the three executive tasks. Further evidence of construct validity came from Study 2, in which Webexec scores correlated positively with both use of cannabis and prospective memory problems reported in an online drug questionnaire. Webexec thus appears suitable for online research with normal populations.
Author(s): Buchanan T, Heffernan TM, Parrott AC, Ling J, Rodgers J, Scholey AB
Publication type: Article
Publication status: Published
Journal: Behavior Research Methods
Print publication date: 01/08/2010
ISSN (print): 1554-351X
ISSN (electronic): 1554-3528
Publisher: Springer New York LLC
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