Do talk money -- Reducing income nonresponse in surveys

Last registered on October 04, 2023


Trial Information

General Information

Do talk money -- Reducing income nonresponse in surveys
Initial registration date
September 29, 2023

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
October 04, 2023, 4:45 PM EDT

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



Primary Investigator

Austrian Central Bank

Other Primary Investigator(s)

PI Affiliation
Austrian Central Bank

Additional Trial Information

On going
Start date
End date
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Missing data, in particular nonresponse, are a constant cause of sorrow in surveys. Questions that are especially prone to item nonresponse are questions about monetary values, like income. Over the last decades, several methods to reduce nonresponse were developed and tested. Evidently, there is not one solution that fits all. Being members of the research team of the international OeNB Euro Survey, we will use an experiment, testing a new approach to reduce income nonresponse. The main reason to test new approaches is that the current approach, which will be our control treatment, works well in some country samples but barely in others. Thus, we restrict the experiment to four countries --Bosnia and Herzegovina, Bulgaria, Hungary and Poland -- in which nonresponse is particularly high and current approaches to reduce it have not been fruitful.

In the survey, respondents are initially asked to provide exact amounts on, for example, monthly household income. Currently, if they are then not willing or not able to give an exact amount, i.e. nonresponse occurs, they are offered to choose their income from a list of very granular income brackets. These brackets can amount to over 30 in some countries. We want to test a treatment in which -- instead of presenting respondents these granular brackets after their first income refusal -- we simply ask them if their income falls into the first, second or third income tercile, which is predefined by us. The idea is that (i) for many research projects pursued with the OeNB Euro Survey, being able to categorize people in low, medium or high income is sufficient and (ii) respondents are more likely to answer questions that are cognitively less demanding and less privacy-invading.
External Link(s)

Registration Citation

Allinger, Katharina and Melanie Koch. 2023. "Do talk money -- Reducing income nonresponse in surveys." AEA RCT Registry. October 04.
Experimental Details


See pre-analysis plan attached
Intervention Start Date
Intervention End Date

Primary Outcomes

Primary Outcomes (end points)
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Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
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Experimental Design Details
Randomization Method
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Randomization Unit
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Was the treatment clustered?

Experiment Characteristics

Sample size: planned number of clusters
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Sample size: planned number of observations
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Sample size (or number of clusters) by treatment arms
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Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
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Institutional Review Boards (IRBs)

IRB Name
IRB Approval Date
IRB Approval Number
Analysis Plan

Analysis Plan Documents

PAP: Income Elicitation

MD5: fcf718ff3f2cfeed6a0cea48e8701cdd

SHA1: c407d5c25f2b7e5abd2b81489991404fd61b7da4

Uploaded At: September 29, 2023


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Program Files

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