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"Post" Pre-Analysis Plans: Valid Inference for Non-Preregistered Specifications

Reca Sarfati, Vod Vilfort

arXiv 2 Oct 2025 · Econometrics

arXiv:2510.02507 · PDF · DOI · OpenAlex · Extracted main text

Abstract

Pre-analysis plans (PAPs) have become standard in experimental economics research, but it is nevertheless common to see researchers deviating from their PAPs to supplement preregistered estimates with non-prespecified findings. While such ex-post analysis can yield valuable insights, there is broad uncertainty over how to interpret -- or whether to even acknowledge -- non-preregistered results. In this paper, we consider the case of a truth-seeking researcher who, after seeing the data, earnestly wishes to report additional estimates alongside those preregistered in their PAP. We show that, even absent "nefarious" behavior, conventional confidence intervals and point estimators are invalid due to the fact that non-preregistered estimates are only reported in a subset of potential data realizations. We propose inference procedures that account for this conditional reporting. We apply these procedures to Bessone et al. (2021), which studies the economic effects of increased sleep among the urban poor. We demonstrate that, depending on the reason for deviating, the adjustments from our procedures can range from having no difference to an economically significant difference relative to conventional practice. Finally, we consider the robustness of our procedure to certain forms of misspecification, motivating possible heuristic checks and norms for journals to adopt.

Citation extraction

68
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appendix boundary found by appendix_command · 57% of the source is main text. Read the extracted text to check this.

Most heavily cited references

The works this paper leans on most, across its whole bibliography — not restricted to papers in our corpus. Ranked by composite intensity, which combines how often a work is mentioned, how many sections mention it, and how much of that falls in the main text rather than the appendix.

ReferenceIntensityMentionsSectionsMain text
1Olken, B. A (2015) Promises and perils of pre-analysis plans1.00073100%
2Bessone, P., Rao, G., Schilbach, F., Schofield, H., and Toma, M (2021) The economic consequences of increasing sleep among the urban poor0.96922891%
3McCloskey, A (2024) Hybrid confidence intervals for informative uniform asymptotic inference after model selection0.9568388%
4Andrews, I., Kitagawa, T., and McCloskey, A (2024) Inference on winners0.92810580%
5Lee, J. D., Sun, D. L., Sun, Y., and Taylor, J. E (2016) Exact post-selection inference, with application to the lasso0.9285380%
6Fithian, W., Sun, D., and Taylor, J (2014) Optimal inference after model selection0.8434375%
7Banerjee, A., Duflo, E., Finkelstein, A., Katz, L. F., Olken, B. A.,… (2020) In praise of moderation: Suggestions for the scope and use of pre-analysis plans for rcts in economics0.81142100%
8Pfanzagl, J (1994) Parametric Statistical Theory0.7946350%
9Christensen, G. and Miguel, E (2018) Transparency, reproducibility, and the credibility of economics research0.64422100%
10Miguel, E (2021) Evidence on research transparency in economics0.64422100%

Showing the top 10 of 68 scored citations.

Cited by, within the corpus

arXiv econ.EM papers that cite this one, ranked by how heavily they lean on it.

Citing paperIntensityMentionsSections
1Integrating Diagnostic Checks into Estimation0.73732
2Inference on effect size after multiple hypothesis testing0.64422
3Dynamically Consistent Statistical Decisions0.40511