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Effectiveness of Informational Pamphlets
Last registered on February 10, 2019

Pre-Trial

Trial Information
General Information
Title
Effectiveness of Informational Pamphlets
RCT ID
AEARCTR-0003871
Initial registration date
February 09, 2019
Last updated
February 10, 2019 7:51 PM EST
Location(s)

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Primary Investigator
Affiliation
Claremont Graduate University
Other Primary Investigator(s)
PI Affiliation
UCLA
PI Affiliation
Claremont Graduate University
PI Affiliation
Occidental College
Additional Trial Information
Status
In development
Start date
2019-02-11
End date
2019-12-31
Secondary IDs
Abstract
Exemplified by the passing of the recent Proposition 12, there is a growing concern among consumers about the welfare of farm animals and the need to address the ethical and moral implications of factory farming practices is gaining momentum. However, clear and concise information about the issue is not readily available to the public. To fill this gap, consumer advocate groups and animal right activists distribute informational pamphlets in public spaces to create awareness and urge individuals to take personal actions to help promote animal welfare. As such, this project aims to assess the effect of these informational pamphlets about welfare of farm animals on food choices of participants.
External Link(s)
Registration Citation
Citation
Bustamante-Vargas, Arturo et al. 2019. "Effectiveness of Informational Pamphlets." AEA RCT Registry. February 10. https://doi.org/10.1257/rct.3871-2.0
Former Citation
Bustamante-Vargas, Arturo et al. 2019. "Effectiveness of Informational Pamphlets." AEA RCT Registry. February 10. https://www.socialscienceregistry.org/trials/3871/history/41302
Experimental Details
Interventions
Intervention(s)
Intervention Start Date
2019-02-11
Intervention End Date
2019-05-31
Primary Outcomes
Primary Outcomes (end points)
Main Outcome: Purchase was meat or not
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Survey Outcomes:
1. Diet changed
2. Reason for diet change
3. Remembered leaflet
4. Read the leaflet
5. Flyer affected you?
6. Importance of animal, personal choice, accessibility of replacements, willing to make changes
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
Study design - the project uses a randomized controlled trial. Participants will be divided in to treatment and control groups. Each group will get a flier pertaining to animal welfare.
Treatment group flier – compassionate choices - about mistreatment of farm animals and vegetarian/vegan diet.
Control group flier – the cruelty behind the cuteness - about puppy mills and pet adoption.
Experimental Design Details
Not available
Randomization Method
Randomization is done using the last digit of the student's ID numbers.
Even last digit - treatment group flier
Odd last digit - control group flier
Randomization Unit
Individual
Was the treatment clustered?
No
Experiment Characteristics
Sample size: planned number of clusters
1000 participants
Sample size: planned number of observations
1000 participants
Sample size (or number of clusters) by treatment arms
500 students treatment 500 control
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
Occidental college HSRRC
IRB Approval Date
2019-01-17
IRB Approval Number
Jali-F18126
Analysis Plan

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