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Journal of Accounting Research Vol. 63 No. 1 2025

Discontinuous Distribution of Test Statistics Around Significance Thresholds in Empirical Accounting Studies

Xin Chang1; Huasheng Gao2; Wei Li3

1 Nanyang Business School, Nanyang Technological University · 2 International School of Finance Fudan University · 3 Department of Accountancy City University of Hong Kong

open access

Abstract

Examining test statistics from articles in six leading accounting journals, we detect discontinuities in their distributions around conventional significance thresholds ( p‐ values of 0.05 and 0.01) and find an unusual abundance of test statistics that are just significant. Further analysis reveals that these discontinuities are more prominent in studies with smaller samples and are more salient in experimental than in archival studies. The discontinuity discrepancy between experimental and archival studies relates to several proxies for researcher degrees of freedom. Nevertheless, this evidence does not imply that experimental research is more prone to questionable research practices than archival studies. Overall, our findings speak to the concern of whether accounting researchers could exercise undisclosed discretion to obtain and report statistically significant results. Based on our results, a healthy skepticism of some just‐significant test statistics is warranted.

DOI
10.1111/1475-679x.12579
Volume
63
Issue
1
Pages
165-206
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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