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Survey Incentives
Last registered on July 20, 2020

Pre-Trial

Trial Information
General Information
Title
Survey Incentives
RCT ID
AEARCTR-0006138
Initial registration date
July 17, 2020
Last updated
July 20, 2020 11:38 AM EDT
Location(s)
Region
Primary Investigator
Affiliation
Harvard Business School
Other Primary Investigator(s)
PI Affiliation
Harvard
PI Affiliation
Harvard
Additional Trial Information
Status
In development
Start date
2020-07-14
End date
2020-09-14
Secondary IDs
Abstract
Survey response rates are often low. To encourage survey completion, participants are sometimes offered financial incentives. In a survey of small business owners, this project explores the impact of incentives on survey responses. Business owners will be offered one of four treatments: (1) in the control group, business owners will receive a message encouraging them to complete the survey; (2) in the gift treatment, business owners will receive a similar message and will also be offered a gift card prior to starting the survey with no conditions attached; (3) in the incentives treatment ($25), business owners will be offered a similar message and also a gift card of the same dollar amount, but to be paid after survey completion (and conditional on completing the full survey); (4) the large incentives treatment ($50) is the same as (3) but with $50 instead of $25. We will analyze the survey response rates and survey completion rates under each condition, as well as the characteristics of businesses responding under each condition. We will also investigate messaging effects for repeat users in a panel survey and new users who are being recruited to join a panel. The experiment uses a partially adaptive design.
External Link(s)
Registration Citation
Citation
Cullen, Zoe , Michael Luca and Christopher Stanton. 2020. "Survey Incentives." AEA RCT Registry. July 20. https://doi.org/10.1257/rct.6138-1.0.
Experimental Details
Interventions
Intervention(s)
We are conducting a multi-wave panel survey on small business owners’ perceptions and actions in the face of COVID-19. This research evaluates different inducements for survey participation.
Intervention Start Date
2020-07-20
Intervention End Date
2020-08-03
Primary Outcomes
Primary Outcomes (end points)
Our primary outcomes of interest are the response to the email by clicking through to the survey, survey completion in this wave, and differences in the distribution of user characteristics to complete the survey.
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Time spent in the survey. Survey response and completion in future waves of the multi-wave survey.
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
Please see details under intervention.
Experimental Design Details
Randomization Method
In office on computer
Randomization Unit
Individuals
Was the treatment clustered?
No
Experiment Characteristics
Sample size: planned number of clusters
910
Sample size: planned number of observations
910
Sample size (or number of clusters) by treatment arms
227
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
Harvard University
IRB Approval Date
2020-06-23
IRB Approval Number
IRB20-0465
Analysis Plan

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Post-Trial
Post Trial Information
Study Withdrawal
Intervention
Is the intervention completed?
No
Is data collection complete?
Data Publication
Data Publication
Is public data available?
No
Program Files
Program Files
Reports, Papers & Other Materials
Relevant Paper(s)
REPORTS & OTHER MATERIALS