Glaucoma Screening to Enhance At-Risk Californians' Health - Survey Response Incentives

ConditionScreening
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age50+
SponsorUniversity of California, San Francisco

About this trial

This is a randomized trial to assess whether offering a financial incentive will improve the response rate to a telephone survey. Three incentive approaches will be compared: a $5 gift card, entry into a monthly $100 drawing, or no incentive.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

None

Disqualifiers

None

Trial design

Design model

Parallel

Treatments tested in this trial

  • $5 gift card

    Other intervention

    A $5 gift card is offered as an incentive to participation in the 3-month survey call.

  • $100 monthly drawing

    Other intervention

    Entry into monthly drawing for $100 gift card is offered as an incentive to participation in the 3-month survey call.

Treatment groups

2,000 Participants
are divided into 3 treatment groups
Group A: $5 gift cardExperimental treatment 1 intervention
Group B: $100 monthly drawingActive comparator 1 intervention
Group C: No incentiveNo intervention 0 interventions

Trial outcomes

Primary outcomes

1

Survey completion

Time frame
One month after the outreach call is completed

Secondary outcomes

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

University of California, San Francisco

Lead sponsor

Centers for Disease Control and Prevention

Collaborator