The Effect of Monetary Incentive on Survey Response for Vulnerable Children and Youth

NCT01741675 | Completed DMC

• 1 other identifier: SFI - 2251
• Study Type: interventional
• Target: 270
• Locations: 1 country
• Sites: 1

Brief Summary

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).

Conditions

Quality of Life

Keywords

Questionnaires; Quality of Life; Response rate

Outcome Measures

Primary Outcomes (1)

• Response rate

  The primary outcome measure will be questionnaire response rate which is defined as the proportion of questionnaires returned by participants.

  up to 10 weeks after receiving the questionnaire

Secondary Outcomes (1)

• The secondary outcomes will be scores on the five multiitems scales in the strengths and difficulties questionnaire

  up to 10 weeks after receiving the questionnaire

Study Arms (2)

Monetary incentive

EXPERIMENTAL

The intervention group will receive a postal questionnaire together with a voucher worth €15 for the largest supermarket chain in Denmark. Non-responders will after three weeks receive a reminder together with another copy of the questionnaire. In both cases the questionnaire will be sent with a cover letter and a reply paid return envelope.

Behavioral: Questionnaire and monetary incentive

Control

OTHER

The control group will only receive a postal questionnaire. Non-responders will after three weeks receive a reminder together with another copy of the questionnaire. In both cases the questionnaire will be sent with a cover letter and a reply paid return envelope.

Behavioral: Questionnaire only

Interventions

Questionnaire and monetary incentive BEHAVIORAL

Monetary incentive

Questionnaire only BEHAVIORAL

Control

Eligibility Criteria

• Age: 10 Years - 30 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

• Participants are taken from an established intervention study aiming at creating network for different groups of vulnerable children and youth aged 10-23 years. The groups comprise: children in foster care, former foster youth, children of mental ill parents, children of parents with alcohol abuse and children raised in violent families. Participants who have given informed consent to take part in the evaluation of the established intervention study and thereby agree to fill out questionnaires and report their unique personal identification number are eligible to take part in the study.

You may not qualify if:

• Based on the participants unique personal identification number (CPR-number in the Danish Civil Registration System) the Central Office of Civil Registration will provide us with addresses of the participants. Participants, who are not available in the Civil Register either because participants are dead, immigrated or have requested survey exemption, are excluded from the study. Participants who have reported incomplete identification number will also be excluded.

Sponsors & Collaborators

• VIVE - The Danish Center for Social Science Research: lead

Study Sites (1)

SFI - The Danish National Centre for Social Research

Copenhagen, DK-1052, Denmark

Location

Related Publications (1)

• Pejtersen JH. The effect of monetary incentive on survey response for vulnerable children and youths: A randomized controlled trial. PLoS One. 2020 May 12;15(5):e0233025. doi: 10.1371/journal.pone.0233025. eCollection 2020.

  PMID: 32396564 DERIVED

MeSH Terms

Interventions

Surveys and Questionnaires

Intervention Hierarchy (Ancestors)

Data Collection; Epidemiologic Methods; Investigative Techniques; Health Care Evaluation Mechanisms; Quality of Health Care; Health Care Quality, Access, and Evaluation; Public Health; Environment and Public Health

Study Officials

• Jan H Pejtersen, Ph D

  SFI - The Danish National Centre for Social Research

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: BASIC SCIENCE
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: November 26, 2012
• First Posted: December 5, 2012
• Study Start: November 1, 2012
• Primary Completion: August 1, 2014
• Study Completion: August 1, 2014
• Last Updated: February 27, 2015

Record last verified: 2015-02

Locations

DK (1)