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Can simply answering research questions change behaviour? Systematic review and meta analyses of brief alcohol intervention trials

PloS one, 2011-10, Vol.6 (10), p.e23748 [Peer Reviewed Journal]

COPYRIGHT 2011 Public Library of Science ;COPYRIGHT 2011 Public Library of Science ;2011 McCambridge, Kypri. This is an open-access article distributed under the terms of the Creative Commons Attribution License: https://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;McCambridge, Kypri. 2011 ;ISSN: 1932-6203 ;EISSN: 1932-6203 ;DOI: 10.1371/journal.pone.0023748 ;PMID: 21998626

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  • Title:
    Can simply answering research questions change behaviour? Systematic review and meta analyses of brief alcohol intervention trials
  • Author: McCambridge, Jim ; Kypri, Kypros
  • McCulloch, Peter
  • Subjects: Alcohol Drinking - therapy ; Alcohol use ; Alcoholism - therapy ; Alcohols ; Behavior ; Bias ; Clinical trials ; Consent ; Cooperation ; Counseling - methods ; Drinking (Alcoholic beverages) ; Drinking behavior ; Drinking of alcoholic beverages ; Epidemiology ; Humans ; Identification methods ; Intervention ; Medicine ; Public health ; Self Report ; Social and Behavioral Sciences ; Studies
  • Is Part Of: PloS one, 2011-10, Vol.6 (10), p.e23748
  • Description: Participant reports of their own behaviour are critical for the provision and evaluation of behavioural interventions. Recent developments in brief alcohol intervention trials provide an opportunity to evaluate longstanding concerns that answering questions on behaviour as part of research assessments may inadvertently influence it and produce bias. The study objective was to evaluate the size and nature of effects observed in randomized manipulations of the effects of answering questions on drinking behaviour in brief intervention trials. Multiple methods were used to identify primary studies. Between-group differences in total weekly alcohol consumption, quantity per drinking day and AUDIT scores were evaluated in random effects meta-analyses. Ten trials were included in this review, of which two did not provide findings for quantitative study, in which three outcomes were evaluated. Between-group differences were of the magnitude of 13.7 (-0.17 to 27.6) grams of alcohol per week (approximately 1.5 U.K. units or 1 standard U.S. drink) and 1 point (0.1 to 1.9) in AUDIT score. There was no difference in quantity per drinking day. Answering questions on drinking in brief intervention trials appears to alter subsequent self-reported behaviour. This potentially generates bias by exposing non-intervention control groups to an integral component of the intervention. The effects of brief alcohol interventions may thus have been consistently under-estimated. These findings are relevant to evaluations of any interventions to alter behaviours which involve participant self-report.
  • Publisher: United States: Public Library of Science
  • Language: English
  • Identifier: ISSN: 1932-6203
    EISSN: 1932-6203
    DOI: 10.1371/journal.pone.0023748
    PMID: 21998626
  • Source: PLoS (Open access)
    GFMER Free Medical Journals
    MEDLINE
    PubMed Central（OA）
    ProQuest Central
    DOAJ Directory of Open Access Journals
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