New Study on List Experiments Published

When Statistical Truth Serum is not Enough – Lessons from a Failed List Experiment to Measure Corruption in Ukraine

Christoph Sajons · Bettina Müller · Maksym Samoiliuk

Survey Research Methods (2026)

Vol. 20, No. 3, pp. 391–405

 

List experiments are designed to elicit truthful responses to sensitive topics by providing a great degree of anonymity to the respondents. However, they rely on the assumption that respondents do not react to the survey design. In this paper, we report the results of a list experiment that aimed to measure the extent of corruption and bribery in the application process for an international support program for small and medium enterprises (SMEs) in Ukraine. The experiment fails a critical validity check and produces unrealistic results. Closer inspection of the data and information from a follow-up survey among participants indicates that a significant share of program beneficiaries may have intentionally misstated their experiences in the application process.

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