Demographic differences in the effect of price on giving in a diverse population.

Last registered on May 18, 2022

Pre-Trial

Trial Information

General Information

Title
Demographic differences in the effect of price on giving in a diverse population.
RCT ID
AEARCTR-0009459
Initial registration date
May 17, 2022

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
May 18, 2022, 5:15 PM EDT

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

Locations

Region

Primary Investigator

Affiliation
Concordia College

Other Primary Investigator(s)

Additional Trial Information

Status
In development
Start date
2022-05-19
End date
2022-05-26
Secondary IDs
C90, C91, C99, D31, D64
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
We conduct an experiment to verify the results of a prior experiment using a demographically diverse online subject pool to estimate values for total and extensive price elasticities of giving by religiosity. After a demographic survey, subjects who report very high or very low religiosity are randomly assigned to a dictator game with amounts sent multiplied by either 0.2 or 2.0, varying effective price of giving.
External Link(s)

Registration Citation

Citation
Mayo, Robert. 2022. "Demographic differences in the effect of price on giving in a diverse population.." AEA RCT Registry. May 18. https://doi.org/10.1257/rct.9459-1.0
Experimental Details

Interventions

Intervention(s)
Intervention Start Date
2022-05-19
Intervention End Date
2022-05-26

Primary Outcomes

Primary Outcomes (end points)
Amounts sent, multiplier value, religiosity self-reported on a scale of 1-100.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
Subjects will be recruited through Mechanical Turk. Following an attention test they will be presented with a brief demographic survey including asking how religious they are on a scale of 1-100. Subjects reporting very high (> 95) or very low (< 5) religiosity will proceed to a dictator game with an endowment of $1. Subjects are informed that any amount sent to an anonymous person in a separate group will be modified by the experimenter by a multiplication factor. Subjects are randomly assigned to a multiplier = 0.2 treatment or a multiplier = 2.0 treatment. Subjects are told the value of the multiplier before making a decision on amount to send.
Experimental Design Details
Randomization Method
The experiment is coded in Qualtrics which randomized subjects to treatments.
Randomization Unit
Individual.
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
N/A
Sample size: planned number of observations
500 subjects.
Sample size (or number of clusters) by treatment arms
250 subjects in each of two multiplier treatments.
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Supporting Documents and Materials

Documents

Document Name
Experiment Mayo 2022_05_15 Subject Interface and Logic
Document Type
survey_instrument
Document Description
Subject Interface and Logic
File
Experiment Mayo 2022_05_15 Subject Interface and Logic

MD5: c54bc686d623e4179ff9d595b18960b5

SHA1: 29f62b2257a47c06a2cee0273edacdc46039fe35

Uploaded At: May 17, 2022

IRB

Institutional Review Boards (IRBs)

IRB Name
Concordia College Institutional Review Board - Department Chair Approval
IRB Approval Date
2022-05-16
IRB Approval Number
N/A

Post-Trial

Post Trial Information

Study Withdrawal

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Intervention

Is the intervention completed?
No
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