Decision Making on Food Choices

Last registered on January 08, 2022

View Trial History

Pre-Trial

Trial Information

General Information

Title

Decision Making on Food Choices

RCT ID

AEARCTR-0004888

Initial registration date

October 21, 2019

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

October 22, 2019, 11:14 AM EDT

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

Last updated

January 08, 2022, 1:16 AM EST

Last updated is the most recent time when changes to the trial's registration were published.

Locations

Country

United States of America

Region

California

Primary Investigator

Name

Joshua Tasoff

Affiliation

Claremont Graduate University

Contact Primary Investigator

Other Primary Investigator(s)

PI Name

Eva Vivalt

PI Affiliation

Australia National University

Contact Investigator

PI Name

Emiliano Huet-Vaughn

PI Affiliation

Pomona College

Contact Investigator

Additional Trial Information

Status

Completed

Start date

2019-12-01

End date

2020-06-30

Keywords

Other, Welfare

Additional Keywords

JEL code(s)

Secondary IDs

Prior work

This trial does not extend or rely on any prior RCTs.

Abstract

See attachment

External Link(s)

Registration Citation

Citation

Huet-Vaughn, Emiliano, Joshua Tasoff and Eva Vivalt. 2022. "Decision Making on Food Choices." AEA RCT Registry. January 08. https://doi.org/10.1257/rct.4888-2.0

Sponsors & Partners

Experimental Details

Interventions

Intervention(s)

This is a lab experiment.

Intervention Start Date

2019-12-01

Intervention End Date

2020-06-30

Primary Outcomes

Primary Outcomes (end points)

See uploaded document

Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)

Secondary Outcomes (explanation)

Experimental Design

See uploaded document

Experimental Design Details

Randomization Method

Computer

Randomization Unit

individual

Was the treatment clustered?

Experiment Characteristics

Sample size: planned number of clusters

Our original plan was 500 individuals if funds permit.

2021-01-07
Data collection began in roughly Jan 2020. We ran about 80 subjects when the global pandemic temporarily shut down our data collection from March of 2020 to Aug 2021. In Sep 2021 we resumed running experiments but our subject pool was depleted. At great cost of time and money we conducted a massive recruitment effort. By Dec 2021 we had approximately N=300. We have not analyzed the data.

Our new target N is 400 as 500 is no longer feasible. Even as I write this the omicron wave is surging and has caused the Claremont Colleges, where we are running the experiment, to go entirely online for the first 2 weeks of the semester. We will try to collect N=400 after we return to campus in Feb 2022, but if future access to campus or to the subject pool yields less than 20 subjects per week we judge that the administrative burden and cost of time to be too high and we will end data collection with the sample that we have at that time.

Sample size: planned number of observations

see above

Sample size (or number of clusters) by treatment arms

see above

Minimum detectable effect size for main outcomes (accounting for sample design and clustering)

Supporting Documents and Materials

IRB