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Your journey
1What's a trial
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More info
You can access this
clinical trial
if you have
Quality of Life
and you are
between 10 and 30
years old
The phase for this study is not defined.
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The purpose

ABSTRACT The purpose of the study is to investigate if a monetary incentive can increase the response rate for vulnerable children and youth in a postal survey. A secondary purpose is to test if monetary incentive has an effect on the content of answers in a postal survey. The study is a randomized controlled trial where participants will be randomly allocated to receive a questionnaire together with a €15 voucher for a supermarket or to only receive a questionnaire. Data are taken from an intervention study aiming at creating network for different groups of vulnerable children and youth aged 8-23 years. The questionnaire survey in the present study is a follow up survey of the original study which are performed 1-2½ years after the participant have left the study. Recruitment to the original study is still ongoing and the investigators expect the total participation to be around 250. In the primary analysis the investigators will estimate the relative risk (RR) to assess whether there is a difference between group allocation and questionnaire response rate. The investigators will adjust for age in the analysis. In the secondary analyses the investigators will test whether scores on the five SDQ scales are different between group allocations. The investigators will adjust for the covariates age and gender, since the scores may depend on age and gender (4).

Provided treatments

  • Behavioral: Questionnaire and monetary incentive
  • Behavioral: Questionnaire only

Locations near you

Unfortunately, there are no recruiting locations near you. Please check the list with all locations below.
Tris trial is registered with FDA with number: NCT01741675. The sponsor of the trial is The Danish National Centre For Social Research and it is looking for 270 volunteers for the current phase.
Official trial title:
The Effect of Monetary Incentive on Survey Response for Vulnerable Children and Youth