apply-dual-process-diagnostic

name	apply-dual-process-diagnostic
description	Use when about to act on a fast, intuitive judgment for a decision that's high-stakes, unfamiliar, made under time pressure, or in a domain that doesn't behave regularly enough for intuition to have learned reliable cues — check the situation against these specific conditions before trusting the intuitive answer, and if any apply, deliberately force a slower, explicit check rather than acting on the first judgment that comes to mind.
source	Tversky & Kahneman, "Judgment under Uncertainty: Heuristics and Biases", Science 185 (1974); Kahneman & Klein, "Conditions for Intuitive Expertise: A Failure to Disagree", American Psychologist (2009); Croskerry, "Cognitive Forcing Strategies in Clinical Decisionmaking", Annals of Emergency Medicine (2003) — documents this diagnose-then-override technique as standard emergency-medicine clinical-reasoning training; Kahneman, "Thinking, Fast and Slow" (2011) as the popularizing synthesis
tags	["dual-process-theory","kahneman","cognitive-bias","decision-making","intuition","deliberate-reasoning"]
related	["apply-mental-models-framework","audit-cognitive-tendency-checklist","apply-premortem","apply-metacognition-techniques"]

Apply Dual-Process Diagnostic

Before acting on a fast, intuitive judgment, check the situation against specific conditions that predict when intuition is unreliable — high stakes, an unfamiliar domain, time pressure, or an environment too irregular for intuition to have learned trustworthy cues — and if any apply, deliberately force a slower, explicit check before acting on the first answer that came to mind.

Disclaimer: This is a general decision-making and reasoning technique, not psychological treatment or diagnosis. If difficulty trusting one's own judgment reflects a broader pattern of anxiety, obsessive doubt, or another clinical concern rather than an ordinary decision-quality question, consult a licensed mental health professional rather than relying on this technique alone.

Why This Is Best Practice

Adopted by: Cognitive forcing strategies — deliberately pausing to check an initial intuitive diagnosis before acting on it — are documented as standard training in emergency medicine clinical reasoning, where a fast intuitive judgment can be right most of the time but catastrophically wrong in the specific cases where the domain doesn't behave the way intuition assumes.

Impact: Kahneman and Klein's 2009 analysis identified concrete, checkable conditions under which intuitive judgment is and isn't trustworthy: intuition is reliable in domains regular enough to have consistent cues, combined with enough practice to have actually learned them; it becomes unreliable specifically in novel, irregular, or high-pressure situations where those conditions aren't met. This gives a checkable diagnostic rather than a blanket "always doubt your gut" or "always trust your gut" rule — either extreme is wrong, and the actual answer depends on the specific conditions of the situation at hand.

Why best: This is a different, narrower technique than the general cognitive-tools already in this repo. apply-mental-models-framework's specific models (first principles, inversion, second-order thinking) are what to do once you've already decided a decision needs deliberate analysis — they don't address the prior question of when to decide that in the first place. audit-cognitive-tendency-checklist catalogs specific named psychological tendencies (Munger's list) to check a decision against, a different taxonomy entirely from the fast/slow processing distinction. This skill's distinguishing content is exactly that upstream diagnostic step — deciding whether the situation calls for deliberate override at all — which neither of those skills performs.

Sources: Tversky & Kahneman, Science (1974); Kahneman & Klein, American Psychologist (2009); Croskerry, Annals of Emergency Medicine (2003); Kahneman, Thinking, Fast and Slow (2011).

Steps

1. Notice the intuitive judgment before acting on it. Name the fast, automatic answer that came to mind — this step alone is often skipped, since intuitive judgments frequently get acted on without ever being explicitly noticed as a discrete judgment worth checking.

2. Check the situation against the conditions that predict unreliable intuition. Ask whether the decision is high-stakes (a wrong call is costly), the domain is unfamiliar (little relevant past experience to draw on), there's significant time pressure preventing deliberate checking, or the environment is irregular enough that past cues may not generalize to this specific case.

3. If none of the conditions apply, proceed with the intuitive judgment. A regular, familiar domain with adequate past practice and no unusual time pressure is exactly where intuition tends to be reliable — forcing a slow deliberate check on every routine judgment wastes effort without improving decisions.

4. If one or more conditions apply, deliberately force a slower check before acting. Write the reasoning down explicitly, seek out disconfirming evidence, or apply a specific deliberate-reasoning technique (apply-mental-models-framework) rather than proceeding directly from the intuitive judgment to action.

5. Use a forcing mechanism, not just an intention. Simply resolving to "think it through more" is easy to skip under the same time pressure or familiarity bias that produced the fast judgment in the first place — use a concrete forcing step (a written checklist, a required second opinion, a mandatory pause) that doesn't depend on remembering to slow down in the moment.

Rules

• Check the situation against concrete conditions (stakes, familiarity, time pressure, environmental regularity) — don't apply a blanket "always trust intuition" or "always doubt intuition" rule; the right answer depends on the specific situation.
• Use an explicit forcing mechanism for the slow check when a condition is triggered — a mere intention to think it through is unreliable under the same pressures that produced the fast judgment.
• Don't force a slow deliberate check on every decision regardless of conditions — this wastes effort on routine, low-stakes, familiar judgments where intuition is actually reliable.

Examples

Trigger: An experienced professional makes a quick call on a routine, familiar situation they've handled many times before, with no unusual time pressure. → Check conditions: familiar domain, adequate past practice, no elevated stakes or time pressure — none of the unreliable-intuition conditions apply. Proceed with the intuitive judgment; forcing a slow deliberate re-check here adds cost without improving the decision.

Trigger: The same professional faces an unusual, high-stakes case outside their typical pattern, under time pressure to decide quickly. → Check conditions: high stakes, unfamiliar/irregular case, time pressure — multiple unreliable-intuition conditions apply. Force an explicit slower check (a required second opinion, a written checklist) before acting on the first intuitive read, rather than trusting the fast judgment that would normally serve well in the routine case.

Common Mistakes

• Treating all intuitive judgments as equally trustworthy or equally suspect. Intuition's reliability depends on checkable conditions (domain regularity, adequate practice, absence of unusual pressure) — a blanket rule in either direction misses cases the diagnostic would have caught.
• Relying on an intention to "think it through" instead of a concrete forcing mechanism. Under the same time pressure or familiarity bias that produced the fast judgment, an unstructured intention to slow down is easy to skip.
• Forcing a slow deliberate check on every decision regardless of conditions. This is as much a failure mode as never checking — it wastes effort on the routine, familiar, low-stakes judgments where intuition is actually the more efficient and reliable choice.
• Skipping the noticing step and acting on the intuitive judgment before it's ever explicitly identified. If the fast judgment is never named as a discrete decision point, there's no opportunity to check it against the reliability conditions at all.

When NOT to Use

• For low-stakes, routine, familiar decisions where the reliability conditions clearly favor intuition — applying this diagnostic to every minor judgment adds unnecessary overhead.
• When there is no time available for even a minimal forcing mechanism and a decision must be made immediately — in genuine emergencies, trained intuition (if the domain is one where relevant expertise has actually been built) may be the only available option regardless of the diagnostic's result.
• As a substitute for the actual deliberate-reasoning technique once a slow check is triggered — this skill only diagnoses whether to engage deliberate reasoning; use apply-mental-models-framework or a similar technique for the reasoning itself.