Does signing at the top of a form reduce dishonesty?

Picture a form that ends with a statement such as “I confirm that the information above is true,” followed by a signature line. You fill in the form, then sign. What if you signed at the top instead, before writing anything? The idea is that you would think about honesty before deciding what to report, rather than after. A 2012 paper reported evidence that this simple change reduced dishonest reporting.

The finding did not hold up in a substantial later replication effort. Separately, PNAS retracted the original paper in 2021 over concerns about the validity of its data. Those are two different developments. The replication tested the proposed effect; the retraction changed whether the original paper could be relied on as evidence. Kristal and colleagues, 2020; official retraction notice.

The original claim

Lisa Shu and colleagues reported that asking people to sign an honesty declaration at the beginning of a form reduced dishonest reporting compared with signing at the end. Their paper described laboratory studies and an insurance field experiment. The proposed explanation was that signing first brought ethical standards to mind before the opportunity to misreport. Original paper, now retracted.

The appeal was its apparent simplicity. An organization would not need to make the task easier, increase monitoring or change the financial incentive. It could just move a signature box.

But a simple change still has to be shown to work. A cheap intervention that does not improve the outcome can still use up attention and crowd out a better solution. The real question is whether moving the signature actually reduces dishonest reporting in the setting where it will be used.

What the later tests found

In 2020, Ariella Kristal and colleagues, including several authors of the original paper, reported five conceptual replications and one preregistered direct replication of the original paper's first laboratory experiment. A conceptual replication tests a related claim with a changed procedure. A direct replication tries to reproduce the original procedure more closely. Across the tests, the researchers did not reproduce a benefit from signing first rather than last. The direct replication involved 1,235 participants and assessed the original study's reporting outcomes. Replication paper.

The difference between the two kinds of replication matters. A string of failed variations would be weaker evidence against a specific original result than one closely matched test of that result. This project did not stop at variations. It deliberately went back to the original laboratory question, which makes its result especially relevant to the claim that moving the signature, by itself, makes people more honest.

It does not show that every honesty reminder fails. A different intervention, tested against a different comparison, can give a different answer. That is why the intervention and the comparison need to stay visible.

The replication paper was corrected too

In June 2026, PNAS published a correction to the 2020 replication paper. It repaired reported confidence intervals and effect-size signs in the direct replication, clarified sample and condition counts, and corrected descriptions of some procedures. The corrected results still report no detected sign-first benefit on the three preregistered outcomes. Official correction.

The correction does not reverse the broad conclusion, but it belongs in the account. Papers that challenge a famous finding need the same scrutiny as papers that support it. If you use the replication's numbers, take them from the corrected record, not an older downloaded copy. And keep the two notices apart: the 2026 correction concerns the replication paper; the 2021 retraction concerns the original paper.

Signing first is not the same as adding a pledge

Consider three hypothetical forms:

Form A has no honesty declaration.
Form B asks for a declaration at the bottom.
Form C asks for the same declaration at the top.

Comparing B with C tests placement. Comparing A with C changes both whether there is a declaration and where it appears. If C outperformed A, that alone would not show an advantage of signing first over signing last.

This small distinction has large consequences. Two studies can both be described as “honesty nudges” while testing different interventions. A favorable result for one does not rescue an unsuccessful result for the other. The replication paper itself discusses this problem when comparing field applications. Kristal and colleagues.

A 2024 megastudy shows the distinction in practice. Janis Zickfeld and colleagues tested 21 honesty oaths and a no-oath condition with 21,506 participants in the UK and US. Participants played an incentivized online tax game in which they could underreport their income, and they took the oath before reporting. Ten of the 21 oaths significantly improved tax compliance compared with no oath, by 4.5 to 8.5 percentage points, and the most effective nearly halved tax evasion. The authors concluded that an oath's effect depended on its content. Zickfeld and colleagues, 2024.

That is a comparison of A with C: an oath before reporting versus no oath. It supports the idea that some commitments to honesty, made before the opportunity to cheat, can reduce dishonest reporting in this kind of game. It does not test moving the same declaration from the bottom of a form to the top, and a tax game played online is not a real tax return or insurance claim. If you want an honesty statement on a form, test the specific wording against no statement, in the setting where you will use it.

What the retraction adds

The PNAS notice, published on September 13, 2021, retracts the original article and says that evidence raised questions about the validity of the data. That is a reason not to use the paper as reliable support for the intervention. PNAS retraction.

Keep the failed replication and the retraction apart. A result may fail to replicate for reasons that have nothing to do with misconduct. And questions about data integrity matter even if a separate study supports a similar effect. Evidence for a claim has to be judged across valid studies; publication status belongs to the particular paper.

Nor should anyone use the notice to infer which individual was responsible for any invalid data. That is a different factual claim, and it requires its own evidence. The practical conclusion here does not depend on settling who was to blame.

What to do with the claim now

Do not cite the 2012 paper as established evidence that moving a signature to the top makes people more honest. If someone proposes the intervention, describe the later replication results and the retraction alongside the original claim.

If you are designing a form, start by defining the behavior you want to change and how you will measure it. A clearer form, a verification process and an honesty declaration are different proposals. None of them gains evidence just by being filed under behavioral science.

The nudges-at-scale evidence review explains why the broader intervention literature also needs careful interpretation. The procrastination and deadlines case shows another situation in which a replication and a retraction answer related but distinct questions.