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Effects of study design and allocation on participant behaviour-ESDA: study protocol for a randomized controlled trial

Kypri, Kypros, McCambridge, Jim, Wilson, Amanda, Attia, John, Sheeran, Paschal, Bowe, Steve and Vater, Tina 2011, Effects of study design and allocation on participant behaviour-ESDA: study protocol for a randomized controlled trial, Trials, vol. 12, Article Number : 42, pp. 1-6, doi: 10.1186/1745-6215-12-42.

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Title Effects of study design and allocation on participant behaviour-ESDA: study protocol for a randomized controlled trial
Author(s) Kypri, Kypros
McCambridge, Jim
Wilson, Amanda
Attia, John
Sheeran, Paschal
Bowe, SteveORCID iD for Bowe, Steve orcid.org/0000-0003-3813-842X
Vater, Tina
Journal name Trials
Volume number 12
Season Article Number : 42
Start page 1
End page 6
Total pages 6
Publisher BioMed Central
Place of publication London, Eng.
Publication date 2011
ISSN 1745-6215
Keyword(s) Science & Technology
Life Sciences & Biomedicine
Medicine, Research & Experimental
Research & Experimental Medicine
CLINICAL-TRIALS
HAZARDOUS DRINKING
Summary BACKGROUND: What study participants think about the nature of a study has been hypothesised to affect subsequent behaviour and to potentially bias study findings. In this trial we examine the impact of awareness of study design and allocation on participant drinking behaviour. METHODS/DESIGN: A three-arm parallel group randomised controlled trial design will be used. All recruitment, screening, randomisation, and follow-up will be conducted on-line among university students. Participants who indicate a hazardous level of alcohol consumption will be randomly assigned to one of three groups. Group A will be informed their drinking will be assessed at baseline and again in one month (as in a cohort study design). Group B will be told the study is an intervention trial and they are in the control group. Group C will be told the study is an intervention trial and they are in the intervention group. All will receive exactly the same brief educational material to read. After one month, alcohol intake for the past 4 weeks will be assessed. DISCUSSION: The experimental manipulations address subtle and previously unexplored ways in which participant behaviour may be unwittingly influenced by standard practice in trials. Given the necessity of relying on self-reported outcome, it will not be possible to distinguish true behaviour change from reporting artefact. This does not matter in the present study, as any effects of awareness of study design or allocation involve bias that is not well understood. There has been little research on awareness effects, and our outcomes will provide an indication of the possible value of further studies of this type and inform hypothesis generation. TRIAL REGISTRATION: Australia and New Zealand Clinical Trials Register (ANZCTR): ACTRN12610000846022.
Language eng
DOI 10.1186/1745-6215-12-42
Field of Research 111799 Public Health and Health Services not elsewhere classified
Socio Economic Objective 929999 Health not elsewhere classified
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2011, The Authors
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30074322

Document type: Journal Article
Collections: Faculty of Health
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Scopus Citation Count Cited 18 times in Scopus
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.