The peer-reviewed and survey evidence consistently points to admitting a serious mistake producing positive outcomes for most people in most contexts. Ma and colleagues’ experimental trust-game study (Frontiers in Psychology, 2019) found that receiving an apology — an admission of fault — made participants more likely to trust their counterpart than receiving no apology, an effect mediated by perceived trustworthiness; the benefit held for those experiencing less negative emotion and weakened for those still highly aggrieved. A Dale Carnegie Training survey of nearly 3,100 employees across 13 countries (reported in The Public Manager) found that 81 percent of respondents valued a leader who admits when they are wrong, while only 41 percent felt their supervisors could be trusted to do so consistently — the largest importance-versus-practice gap of any leadership behavior surveyed. Neither source measures how often admission backfires on the person who admits, so the ~14 percent action rate shown here is not a measured consequence rate but an author proxy: a small-minority estimate for the subset of disclosures made in hierarchical, punitive, or high-emotion environments where admission is weaponised against the person who made it. It is flagged proxy_only and should be read as a directional estimate, not a survey statistic.
The inaction side has no direct survey: no published study reports the proportion of people who concealed a serious mistake and later report ongoing guilt or regret about the concealment itself. The ~40% rate shown here is an explicit author proxy (the entry is flagged proxy_only), anchored only on direction-of-effect evidence. Daniel Pink’s World Regret Survey (n=26,000+, 105 countries) is the strongest anchor: moral regrets — the category that includes covering up mistakes and acting against one’s own values — make up roughly 10 percent of all reported regrets but are rated among the most emotionally intense and long-lasting of all regret types. Secrecy research synthesised by Slepian (Current Directions in Psychological Science, 2024; ~1,000 participants, thousands of secrets) finds that the more a person’s mind wanders to a concealed matter, the more it harms well-being, with concealment associated with lower life satisfaction, anxiety, and isolation. Both lines of evidence point to concealment carrying a sustained psychological cost, but neither establishes a rate; the 40% figure should be read as a directional estimate, not a measured survey statistic.
The regret_delta of -0.26 reflects the pattern identified by Gilovich and Medvec across multiple decision domains: in the short term, admission is the more painful option — the immediate exposure, embarrassment, and risk of negative consequences are concrete and salient, while the long-term cost of concealment is diffuse and delayed. Over time, this asymmetry reverses. People who admitted mistakes and survived the consequences generally move past them; people who concealed significant errors carry the ongoing psychological burden of concealment and the escalating risk of discovery. The Gilovich inaction-dominance pattern fits this entry well. The main caveat is context: in highly hierarchical or legally consequential environments, where admission carries career-ending or criminal risk, the action-regret rate can approach or exceed the inaction-regret rate, and the entry’s inaction-dominance finding should not be applied to those high-stakes outlier situations without accounting for the specific professional and legal context.