Decision-maker Survey Hypothetical Information Experiment

Last registered on January 06, 2025

Pre-Trial

Trial Information

General Information

Title
Decision-maker Survey Hypothetical Information Experiment
RCT ID
AEARCTR-0015108
Initial registration date
January 02, 2025

Initial registration date is when the trial was registered.

It corresponds to when the registration was submitted to the Registry to be reviewed for publication.

First published
January 06, 2025, 12:27 PM EST

First published corresponds to when the trial was first made public on the Registry after being reviewed.

Locations

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Primary Investigator

Affiliation
Tufts University

Other Primary Investigator(s)

PI Affiliation
Syracuse University
PI Affiliation
Brigham Young University

Additional Trial Information

Status
On going
Start date
2025-01-02
End date
2026-01-31
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
We want to understand how two-parent heterosexual households in the USA react to information from academic articles in making choices. We do so by embedding an experiment in a survey where we randomize whether the information from the academic article is about more generic advice versus a message about a study which finds that if the child’s father emails the school and indicates that the mother has limited availability, about 90% of responses from the school will be directed to the father.
External Link(s)

Registration Citation

Citation
Buzard, Kristy, Laura Gee and Olga Stoddard. 2025. "Decision-maker Survey Hypothetical Information Experiment." AEA RCT Registry. January 06. https://doi.org/10.1257/rct.15108-1.0
Sponsors & Partners

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Experimental Details

Interventions

Intervention(s)
Participants will be put into one of a few groups that will be given information about different academic studies about parents and how they interact with schools, and then participants will asked questions about how they react to the information.
Intervention Start Date
2025-01-03
Intervention End Date
2026-01-31

Primary Outcomes

Primary Outcomes (end points)
Primary Outcome: Proportion of people who state they will Increase somewhat / Increase a lot based on the information presented in each of the treatment arms. We also plan to break this out by gender of the participant. We plan to pool C1/C2 and T1/T2 for the main analysis.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
Participants will be put into one of four groups that will be given information about different academic studies about parents and how they interact with schools, and then participants will asked questions about how they react to the information.
Experimental Design Details
Not available
Randomization Method
Randomization by computer via Qualtrics random number generator
Randomization Unit
individual
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
200 individuals
Sample size: planned number of observations
200 individuals
Sample size (or number of clusters) by treatment arms
C1 = 80, T1 = 80, C2 = 20, T2 = 20. We plan to pool C1/C2 and T1/T2 for the main analysis.
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
We expect the proportion who answer they will change their behavior for the control to be 50% and those who are given a treatment message to be around 70%. Power calculations state we should be able to detect these differences with alpha = 0.05, beta =.20 and power =.80 with 93 participants (C1/C2) in control and 93 participants in treatment (T1/T2)
Supporting Documents and Materials

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IRB

Institutional Review Boards (IRBs)

IRB Name
Tufts University
IRB Approval Date
2024-12-23
IRB Approval Number
MOD-04-STUDY00002608