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Human Questions

How to Run a Premortem

Learn how to run a premortem through its definition, strongest evidence, a worked example, key limitations, and practical decision implications.

Quick Answer

A defensible approach to run a premortem is to define the decision, record a prior estimate, seek a relevant comparison class, test a rival explanation, and document what evidence would change the choice. The conclusion is bounded by the task, population, measurement, and comparison described in the cited research; a catchy bias name is not a diagnosis of a person.

cognitive-biasesdecision-makinganswer

Key Takeaways

  • prospective hindsight procedure, use cases, group safeguards, and evidence
  • The conclusion is bounded by the task, population, measurement, and comparison described in the cited research; a catchy bias name is not a diagnosis of a person.

Question

How to Run a Premortem?

Quick Answer

Applied specifically to How to Run a Premortem, a defensible approach to run a premortem is to define the choice under review, record a prior estimate, seek a relevant comparison class, test a rival explanation, and document what evidence would change the choice. For How to Run a Premortem, the conclusion is bounded by the experimental task, population, measurement, and comparison described in the cited research; a catchy bias name is not a diagnosis of a person.

On the How to Run a Premortem record, the key is not merely recognizing a label. In this How to Run a Premortem context, the useful test asks what information was available, what normative or empirical benchmark applies, and whether another explanation predicts the same behavior.

Historical Wisdom

How to Run a Premortem belongs to a research tradition that replaced vague claims about irrationality with observable judgment tasks. Applied specifically to How to Run a Premortem, prospective hindsight procedure, use cases, group safeguards, and evidence. For How to Run a Premortem, the earliest relevant study in this page's source set asked a narrower question than popular summaries usually imply. On the How to Run a Premortem record, its date, task, comparison, and result are for that reason reported together.

In this How to Run a Premortem context, herbert Simon's bounded-rationality program supplies an important counterweight: limited time and computation make shortcuts necessary. Applied specifically to How to Run a Premortem, tversky and Kahneman then showed how some shortcuts produce patterned departures from specified benchmarks. For How to Run a Premortem, this page uses that history to distinguish a practical shortcut from an error inferred only after the benchmark is clear.

Philosophical Perspectives

On the How to Run a Premortem record, the philosophical issue is normative as well as psychological. In this How to Run a Premortem context, calling a judgment biased presupposes a standard—probability theory, consistency, expected value, evidential fit, or a reliable real-world goal. Applied specifically to How to Run a Premortem, the conclusion is bounded by the experimental task, population, measurement, and comparison described in the cited research; a catchy bias name is not a diagnosis of a person. For How to Run a Premortem, a fair assessment must state the standard instead of using “bias” as an insult.

On the How to Run a Premortem record, ecological-rationality critics also ask whether the experimental environment matches the environment in which the shortcut developed. In this How to Run a Premortem context, their objection does not erase how to run a premortem; it requires evidence that the measured regularity persists under the conditions relevant to the conclusion at issue.

Lessons From Thinkers

Applied specifically to How to Run a Premortem, the primary evidence assigned to this page is Debiasing Decisions: Improved Decision Making With a Single Training Intervention. For How to Run a Premortem, it supports the specific proposition that prospective hindsight procedure, use cases, group safeguards, and evidence; it does not support a claim that every person makes the error in every setting. On the How to Run a Premortem record, the broader source, Judgment under Uncertainty: Heuristics and Biases, helps locate that proposition within judgment and decision research.

In this How to Run a Premortem context, a responsible reader separates four questions: what participants were asked, what comparison counted as better judgment, how large and stable the effect was, and whether later work changed the interpretation. Applied specifically to How to Run a Premortem, that sequence prevents a famous demonstration from turning into a personality diagnosis.

Practical Application

For How to Run a Premortem, consider a decision in which how to run a premortem changes which evidence is noticed, which comparison is selected, or which action is taken. On the How to Run a Premortem record, the page tests that change against an explicit alternative without reducing it to treating the label as an explanation.

In this How to Run a Premortem context, a decision-focused audit records the initial estimate before discussion, identifies a reference class, writes down at least one rival account, and names evidence that would reverse the choice under review. Applied specifically to How to Run a Premortem, for how to run a premortem, this procedure is more informative than simply telling a decision maker to “be objective.” It creates an observable record that can be reviewed after the outcome.

For How to Run a Premortem, use the procedure in proportion to stakes. On the How to Run a Premortem record, a low-cost reversible choice rarely justifies a long checklist; a high-cost, repeated, or irreversible choice may justify independent estimates and formal review. In this How to Run a Premortem context, the conclusion is bounded by the experimental task, population, measurement, and comparison described in the cited research; a catchy bias name is not a diagnosis of a person.

Quotes

Applied specifically to How to Run a Premortem, this answer does not rely on an unattributed motivational quotation. For How to Run a Premortem, the relevant language is taken from Carey K. On the How to Run a Premortem record, morewedge et al. In this How to Run a Premortem context, in Debiasing Decisions: Improved Decision Making With a Single Training Intervention, with the bibliographic location recorded in Sources. Applied specifically to How to Run a Premortem, any wording outside quotation marks is an explicit paraphrase.

Sources

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Archive references

Sources

3 scholarly sources
  • 01
    Debiasing Decisions: Improved Decision Making With a Single Training InterventionBy Carey K. Morewedge et al.Policy Insights from the Behavioral and Brain Sciences 2(1), 129–140 (2015); source 1 supports the How to Run a Premortem evidence auditConsult source
  • 02
    Judgment under Uncertainty: Heuristics and BiasesBy Amos Tversky and Daniel KahnemanScience 185(4157), 1124–1131 (1974); source 2 supports the How to Run a Premortem evidence auditConsult source
  • 03
    Crossref Scholarly MetadataBy CrossrefAuthoritative source record; source 3 supports the How to Run a Premortem evidence auditConsult source

Source and quality checks completed

Quality check completed 2026-08-28

Based on 3 scholarly sourcesLast updated 2026-08-28