THE CENTRAL IDEA
Decision review compares outcomes with what was knowable and expected at the time, while accounting for chance and changing conditions.
Concept and evidence
Forecasting studies use recorded judgments because memory after an outcome is an unreliable substitute for the original prediction. Expertise research also emphasizes the importance of meaningful feedback from the environment. MDP’s review domain proposes a routine of preserving reasons and comparing later events with what was knowable at the time. It does not assume that every favorable outcome validates the process or that every poor outcome reveals a mistake.
Chance, external events, and incomplete information can separate process quality from result. A reasonable decision can have an unfavorable outcome, while a weak process can succeed under fortunate conditions. Review should therefore ask whether the relevant evidence and alternatives were considered, whether assumptions were reasonable, and what new information emerged. This is different from retrospectively inventing a perfect choice that no one could have identified beforehand.
Applied interpretation and an original worked example
A participant chooses a supplier after checking relevant requirements and references. An unexpected disruption causes a delay. The review should examine whether the disruption was foreseeable and whether a contingency was proportionate, rather than conclude automatically that the original choice was poor. In another case, a supplier succeeds despite the participant ignoring an obvious dependency; the good outcome should not erase that process weakness.
An MDP experiment uses a short decision record made before implementation. It includes the reason, the main assumption, a prediction, and a review date. Later, the participant notes which information was available at the time and what changed afterward. Higher review responses can become blame-focused or overfit to one unusual event. Lower responses may reflect a lack of accessible feedback. The report should help choose a useful review opportunity and preserve uncertainty. It should not promise that a journal alone makes someone a better decision maker or that every outcome can be cleanly attributed to the person’s reasoning.
Preserving the question that existed before the outcome
A decision review is easier to distort when the result determines which earlier facts seem obvious. Consider selecting a date for an outdoor activity. Once rain occurs, a forecast that allowed for rain may look like a warning that should have decided the matter, even if another option had serious constraints. A prospective note can preserve the actual question, the alternatives considered, the available information, and the reason for choosing. The note is not a defense against criticism; it makes criticism more specific by separating what could have been known from what became clear later.
A proposed MDP study could give reviewers the same decision record with different eventual outcomes and examine whether their process judgments change. That would test the review procedure as well as the participant's self-description. Researchers should distinguish a justified update from a retrospective rewriting of the original decision rule. They should also limit the record to information needed for the study, rather than collecting confidential details merely to make an example vivid. An informative result might be that participants report frequent review but mostly explain outcomes after the fact without revisiting their earlier assumptions. Such a finding would support revising the review items and recommendations, not claiming that the questionnaire has already improved decision quality.
Points to carry forward
- Preserve the original reason and expectation before the outcome is known.
- This original framework remains in development; cited research does not validate its questions.
Where the evidence stops
A single decision outcome cannot establish a stable level of decision skill.
No established reliability, norms, predictive validity, or professional endorsement is claimed.
The cited literature informs our original framework. Read the current evidence status and intended use alongside this guide.
REFERENCES / FOLLOW THE ORIGINAL EVIDENCE