Contact information
Type
Scientific
Primary contact
Prof Mark Petticrew
ORCID ID
Contact details
Public & Environmental Health Research Unit
London School of Hygiene & Tropical Medicine
Keppel Street
London
WC1E 7HT
United Kingdom
Mark.Petticrew@lshtm.ac.uk
Additional identifiers
EudraCT number
ClinicalTrials.gov number
Protocol/serial number
N/A
Study information
Scientific title
Effects of a financial incentive on the response rate to an online questionnaire: a randomised controlled trial
Acronym
Study hypothesis
To assess whether monetary incentives increase response rates to online questionnaires.
Ethics approval
Institute for Research in the Social Sciences (IRISS) Ethics Committee, University of York, approved on 10/07/2008.
Study design
Randomised controlled trial
Primary study design
Interventional
Secondary study design
Randomised controlled trial
Trial setting
Other
Trial type
Other
Patient information sheet
Condition
Research dissemination
Intervention
Knowledge of incentive vs no knowledge of incentive. Gift vouchers (from Amazon.com, Inc.) to the value of £10 (British pounds) were to be given to all participants who completed the questionnaire. The questionnaire/invitation was first sent to the participants on 13 October 2008. Those who did not respond by 31 December 2008 were considered to be non-responders.
Intervention type
Other
Phase
Not Applicable
Drug names
Primary outcome measure
Rate of response between the two groups.
Secondary outcome measures
No secondary outcome measures
Overall trial start date
13/10/2008
Overall trial end date
19/12/2008
Reason abandoned (if study stopped)
Eligibility
Participant inclusion criteria
UK based principal investigators of health services and public health research completed 2003-2008 and (extramural) funded by the Chief Scientist Office, Economic and Social Research Council, Medical Research Council, NIHR Health Technology Assessment Programme, NIHR Service Delivery and Organisation Programme or Wellcome Trust.
Participant type
Patient
Age group
Other
Gender
Both
Target number of participants
536
Participant exclusion criteria
Any principal investigators not based in UK.
Recruitment start date
13/10/2008
Recruitment end date
19/12/2008
Locations
Countries of recruitment
United Kingdom
Trial participating centre
Public & Environmental Health Research Unit
London
WC1E 7HT
United Kingdom
Sponsor information
Organisation
Medical Research Council (UK)
Sponsor details
MRC General Practice Research Framework
Stephenson House
158-160 North Gower Street
London
NW1 2ND
United Kingdom
IN@gprf.mrc.ac.uk
Sponsor type
Government
Website
Funders
Funder type
Government
Funder name
Medical Research Council (MRC) Population Health Sciences Research Network (UK) (Ref: PHSRN 11)
Alternative name(s)
Funding Body Type
Funding Body Subtype
Location
Results and Publications
Publication and dissemination plan
Not provided at time of registration
Intention to publish date
Participant level data
Not provided at time of registration
Basic results (scientific)
Publication list
2010 results in http://www.ncbi.nlm.nih.gov/pubmed/20457556
Publication citations
-
Results
Wilson PM, Petticrew M, Calnan M, Nazareth I, Effects of a financial incentive on health researchers' response to an online survey: a randomized controlled trial., J. Med. Internet Res., 2010, 12, 2, e13, doi: 10.2196/jmir.1251.