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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.
Moral Self-Concept and Charitable Giving
Last registered on September 04, 2018

Pre-Trial

Trial Information
General Information
Title
Moral Self-Concept and Charitable Giving
RCT ID
AEARCTR-0001773
Initial registration date
November 07, 2016
Last updated
September 04, 2018 11:04 AM EDT
Location(s)
Region
Primary Investigator
Affiliation
UC San Diego
Other Primary Investigator(s)
PI Affiliation
UC Berkeley
Additional Trial Information
Status
Completed
Start date
2016-11-07
End date
2016-11-09
Secondary IDs
Abstract
This document describes the pre-analysis plan for a randomized experiment examining the relationship between moral self-concept and charitable giving. Using the Amazon Mechanical Turk, respondents will complete an implicit association test (IAT), a questionnaire on support for redistributive polices, negative affect, self-esteem, omission bias; and have an opportunity to give a portion of their earnings to a charitable organization. A randomly assigned treatment group will be told that they posses strong implicit bias, while the control group will remain unaware of their results. The pre-analysis plan outlines our hypotheses, schedule of tasks, and empirical strategy. In order to guarantee transparency and bind ourselves from “fishing for results” we will pre-register the program producing our main results along with this pre-analysis plan.
External Link(s)
Registration Citation
Citation
Abraham, Justin and Nick Otis. 2018. "Moral Self-Concept and Charitable Giving." AEA RCT Registry. September 04. https://doi.org/10.1257/rct.1773-3.0.
Former Citation
Abraham, Justin, Justin Abraham and Nick Otis. 2018. "Moral Self-Concept and Charitable Giving." AEA RCT Registry. September 04. http://www.socialscienceregistry.org/trials/1773/history/33873.
Experimental Details
Interventions
Intervention(s)
Intervention Start Date
2016-11-07
Intervention End Date
2016-11-09
Primary Outcomes
Primary Outcomes (end points)
To test our primary hypotheses, we analyze the treatment effect on the following outcomes.
1. Percent of windfall donated to charity
2. Support for affirmative action score
3. Support for redistribution score
4. Trolley problem choice
We also analyze the following outcomes as manipulation checks of the treatment.
1. Negative affect score
2. Self-esteem response
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
This study investigates the effect of moral self-concept on charitable giving. We experimentally manipulate moral self-concept by randomly assigning half of respondents into the treatment group to receive an interpretation of their IAT results, emphasizing participants implicit racial bias. The control group will receive confirmation of completion of the IAT without results. Revealing to respondents a potentially unacknowledged implicit bias acts as a negative shock to moral self- concept.
In addition to the IAT manipulation, we overlay a second stage of randomization when soliciting explicit racism. A random half of the sample will be asked “Are you racist?” while the other half will skip this item. We will explore heterogeneity of the treatment effect by being primed to explicitly consider racist attitudes and identity.
Experimental Design Details
Randomization Method
Qualtrics
Randomization Unit
Individual
Was the treatment clustered?
No
Experiment Characteristics
Sample size: planned number of clusters
140
Sample size: planned number of observations
140
Sample size (or number of clusters) by treatment arms
70 control 70 treatment
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
Princeton University
IRB Approval Date
2016-08-10
IRB Approval Number
0000007785
Analysis Plan
Analysis Plan Documents
Moral Self-Concept and Charitable Giving: Pre-Analysis Plan

MD5: 0587b8a3952df4b0cca55d2fea4e1c41

SHA1: 3e408309423d748e25699c1e12615116fa6827b9

Uploaded At: November 07, 2016

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