Testing bias between phone and in-person interviews

Last registered on June 20, 2022

Pre-Trial

Trial Information

General Information

Title
Testing bias between phone and in-person interviews
RCT ID
AEARCTR-0007075
Initial registration date
January 21, 2021

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
January 21, 2021, 3:16 PM EST

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

Last updated
June 20, 2022, 12:03 PM EDT

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

Locations

Region

Primary Investigator

Affiliation
RWI - Leibniz Institute for Economic Research

Other Primary Investigator(s)

PI Affiliation
University of Connecticut

Additional Trial Information

Status
On going
Start date
2020-12-01
End date
2023-12-31
Secondary IDs
Prior work
This trial is based on or builds upon one or more prior RCTs.
Abstract
During the follow-up data collection for a Microfinance Impact evaluation in Myanmar, we are using a hybrid approach in which we conduct both phone and in-person surveys. The aim of this study is to measure any bias that may result from surveying in person vs. via phone, using two short survey experiments.
External Link(s)

Registration Citation

Citation
Fiala, Nathan and Lise Masselus. 2022. "Testing bias between phone and in-person interviews." AEA RCT Registry. June 20. https://doi.org/10.1257/rct.7075
Experimental Details

Interventions

Intervention(s)
Intervention Start Date
2020-12-01
Intervention End Date
2021-01-31

Primary Outcomes

Primary Outcomes (end points)
Economic resilience, food security, subjective wellbeing, business resilience, savings, spousal income, investments, poverty probability and debts
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
The experimental design is described in the PAP attached to this submission.
Experimental Design Details
Not available
Randomization Method
Randomization done in STATA
Randomization Unit
Individual-level randomization
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
A subsample of the 176 villages included in the Microfinance study (see PAP for more details)
Sample size: planned number of observations
1. Phone vs. in-person: 700 individuals 2. In-person long and short: 500 individuals
Sample size (or number of clusters) by treatment arms
We work with treatment arms of equal sizes
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB

Institutional Review Boards (IRBs)

IRB Name
INNOVATIONS FOR POVERTY ACTION IRB
IRB Approval Date
2020-12-20
IRB Approval Number
14675
Analysis Plan

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