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Internet versus paper-and-pencil survey methods in psychological experiments : equivalence testing of participant responses to health-related messages

Lewis, Ioni M., Watson, Barry C., & White, Katherine M. (2009) Internet versus paper-and-pencil survey methods in psychological experiments : equivalence testing of participant responses to health-related messages. Australian Journal of Psychology, 61(2), pp. 107-116.

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Abstract

Despite experiments being increasingly conducted over the internet, few studies have tested whether such experiments yield data equivalent to traditional methods’ data. In the current study, data obtained via a traditional sampling method of undergraduate psychology students completing a paper-and-pencil survey (N = 107) were compared with data obtained from an internet-administered survey to a sample of self-selected internet-users (N = 94). The data examined were from a previous study which had examined the persuasiveness of health-related messages. To the extent that internet data would be based on a sample at least as representative as data derived from a traditional student sample, it was expected that the two methodologies would yield equivalent data. Using formal tests of equivalence on persuasion outcomes, hypotheses of equivalence were generally supported. Additionally, the internet sample was more diverse demographically than the student sample, identifying internet samples as a valid alternative for future experimental research.

Impact and interest:

23 citations in Scopus
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21 citations in Web of Science®

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435 since deposited on 19 Dec 2008
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ID Code: 17005
Item Type: Journal Article
Additional Information: The author-version of this article will be available 18 months after publication. For more information, please refer to the journal’s website (see hypertext link) or contact the author.
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Keywords: internet research, internet samples, experimental research, student samples, equivalence testing, health messages, persuasion
DOI: 10.1080/00049530802105865
ISSN: 1742-9536
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > PUBLIC HEALTH AND HEALTH SERVICES (111700) > Health Promotion (111712)
Australian and New Zealand Standard Research Classification > PSYCHOLOGY AND COGNITIVE SCIENCES (170000) > PSYCHOLOGY (170100) > Psychological Methodology Design and Analysis (170110)
Divisions: Current > Research Centres > Centre for Accident Research & Road Safety - Qld (CARRS-Q)
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Psychology & Counselling
Copyright Owner: Copyright 2009 Taylor and Francis
Deposited On: 19 Dec 2008 11:43
Last Modified: 29 Feb 2012 23:46

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