NEW UPDATE: Completed trials may now upload and register supplementary documents (e.g. null results reports, populated pre-analysis plans, or post-trial results reports) in the Post Trial section under Reports, Papers, & Other Materials.
Environmental Awareness and Consumer Behavior
Initial registration date
October 14, 2017
October 17, 2017 1:21 PM EDT
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Other Primary Investigator(s)
Claremont Graduate University
Additional Trial Information
This study will examine the effects of increased environmental awareness on consumer behavior.
Jalil, Andrew, Joshua Tasoff and Arturo Vargas-Bustamante. 2017. "Environmental Awareness and Consumer Behavior." AEA RCT Registry. October 17.
Intervention Start Date
Intervention End Date
Primary Outcomes (end points)
Percentage of meals that are vegan or vegetarian versus percentage that is meat-based.
Primary Outcomes (explanation)
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
We will visit classes in the experimental group to give a 50-minute guest talk on a particular aspect of climate change.
Experimental Design Details
Classes at Occidental College.
Was the treatment clustered?
Sample size: planned number of clusters
In the Fall 2017 semester, we will make use of 10 classes at Occidental College.
Sample size: planned number of observations
In the Fall 2017 semester, we will have roughly 100-125 students in the control group and 100-125 in the experimental.
Sample size (or number of clusters) by treatment arms
5 classes in the control; 5 in the experimental
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
This is primarily intended as a pilot so that we can conduct a power analysis for our main study in 2018-2019.
INSTITUTIONAL REVIEW BOARDS (IRBs)
Human Subjects Research Review Committee at Occidental College
IRB Approval Date
IRB Approval Number