Run a weekly decision review session
Set aside 20 minutes each week to score past decisions and extract one lesson.
Why it works
Decisions and their outcomes are separated in time, which means feedback is only useful if you create a deliberate moment to receive it. Without a regular review ritual, entries in a decision journal never get closed, outcomes never get compared to predictions, and the feedback loop — the only reason to keep the journal — never closes. A weekly cadence is frequent enough to keep the reasoning fresh and infrequent enough not to feel onerous.
How to do it
- Book a recurring 20-minute weekly slot, perhaps Friday afternoon.
- Open any entries that have reached their expected outcome window.
- Score each on process and outcome (separately), note what surprised you.
- Write one sentence of lesson and one sentence of application to an upcoming decision.
Evidence
Structured review improves goal-attainment and learning from experience — a consistent finding in goal-setting research. The specific "weekly decision review" cadence is a practitioner convention, not a tested schedule, but the review-beats-no-review principle is solid. Anseel and colleagues found that reflection combined with feedback improved subsequent task performance more than feedback alone, supporting the deliberate review step rather than passively receiving outcomes. (observational)
The benefit of review in principle is well supported; the optimal cadence for decision review specifically has not been studied. Weekly is a reasonable default, not a magic number.
Sources
Common mistake
Writing journal entries but never reviewing them, which preserves the record without extracting any feedback — the equivalent of a fitness tracker you never look at.
Practice this with IX Coach
7 days free, then $40/month (~$1.30/day).
More practices for Decision Journaling: Learning to Decide Better Over Time
- Log the decision before the outcome
Write what you decided, why, and what you expect — before you know how it turns out.
- Score decision quality separately from outcome quality
Judge the process you used — not whether it worked — when you review a past decision.
- Classify decisions by reversibility and stakes
Sort decisions into low-stakes/high-stakes and reversible/irreversible before deciding.
- Track your calibration across many predictions
Score your confidence levels against outcomes over dozens of predictions to find your systematic biases.
- Log the information you wished you had
In every decision entry, write: what would I want to know that I don’t?
Related concepts
- Hindsight Bias: Why Everything Seems Obvious in Retrospect
How "I knew it all along" corrupts judgment — and the practices that correct it
- Survivorship Bias: Learning from What You Can’t See
The invisible graveyard of failures — and how to reason from the full distribution
- Thinking, Fast and Slow, Made Usable
Two systems, the biases they create, and when to slow down