Journal de décision — aperçu de la page

Printable Journal de décision

Réfléchissez clairement, décidez avec confiance, apprenez de chaque choix

Hybride Productivité et planification

A structured decision log that captures your reasoning, confidence, emotional state, and outcome for every important choice. Revisiting past entries reveals patterns, reduces hindsight bias, and sharpens your judgment over time.

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Avantages

Reduce hindsight bias by capturing reasoning before you know the outcome
Calibrate confidence over time — see how accurate your predictions are
Make better decisions under pressure by slowing down and structuring your thinking
Build a personal playbook from patterns across past decisions

Comment utiliser

Rate your emotional state and confidence before writing — low scores signal a need for extra caution
State the decision in plain language, list real alternatives, then write your reasoning honestly
Record your expected outcome with a probability estimate if possible
Return after the outcome is known to fill in the result and lessons learned — this is where growth happens

Qu'est-ce que ce journal ?

A decision journal is a structured practice for recording important decisions at the moment you make them — before you know how they turn out. By capturing your reasoning, alternatives considered, emotional state, and expected outcomes, you create an honest record that lets you evaluate your decision-making process over time, separate from results.

This journal is for leaders, entrepreneurs, investors, and anyone who makes consequential decisions and wants to improve their judgment. It is based on the principle that good decisions can have bad outcomes and bad decisions can have good outcomes — the only way to improve is to evaluate the process, not just the result.

Decision science research, popularized by Annie Duke and Daniel Kahneman, shows that "resulting" — judging decisions solely by their outcomes — is one of the biggest obstacles to better judgment. This journal creates a time-stamped record of your reasoning that you can revisit months later, helping you distinguish between genuine skill and luck in your decision-making.

Exemple rempli

Voici à quoi ressemble une entrée typique une fois remplie :

Tuesday, March 4
Confiance dans la décision 7/10
État émotionnel 6/10
Enjeux 8/10
Réversibilité 4/10
La décision
I am accepting the job offer from Company B and declining Company A, even though Company A offered 15% more salary.
Contexte
I have been job searching for 3 months after being laid off. Company A is a large corporation with a higher salary but rigid structure and long commute. Company B is a growing startup with lower salary but equity, remote flexibility, and a role that aligns more closely with where I want my career to go in 5 years.
Alternatives
1. Accept Company A for the financial security and stability. 2. Accept Company B for the growth potential and lifestyle fit. 3. Negotiate with Company A on remote work (attempted — they declined). 4. Continue searching (risky — savings are limited).
Raisonnement
The 15% salary gap will be offset by zero commute costs and time savings. Company B equity could be worth significantly more if they hit their growth targets. More importantly, the role at B directly develops skills I need for my long-term career vision. I would rather earn slightly less doing work that excites me than earn more in a role that feels like treading water.
Résultat attendu
Short-term: tighter budget for 6-12 months. Medium-term: rapid skill growth and meaningful portfolio work. Long-term: better career trajectory than Company A would provide. I expect to feel occasional doubt about the money in the first few months but increasing confidence as I grow into the role.

Comment remplir chaque champ

Le haut de chaque page comporte des champs à remplissage rapide (évaluations, cases à cocher, chiffres). En dessous se trouve une section lignée pour écrire. Voici ce que signifie chaque champ :

Confiance dans la décision

À quel point êtes-vous confiant que c'est le bon choix ? Notez de 1 (très incertain) à 10 (certain)

État émotionnel

Avez-vous les idées claires en ce moment ? Notez de 1 (dispersé) à 10 (très lucide)

Enjeux

Quelle est l'importance des conséquences si cela tourne mal ? Notez de 1 (mineur) à 10 (bouleversant)

Réversibilité

Pouvez-vous facilement changer de cap si nécessaire ? Notez de 1 (irréversible) à 10 (facilement réversible)

La décision

Formulez la décision clairement — que décidez-vous exactement ? La formulation doit être compréhensible même pour un enfant

Contexte

Qu'est-ce qui motive cette décision ? Contexte, contraintes, délais et personnes concernées

Alternatives

Listez les options que vous avez sérieusement envisagées — y compris l'option de ne rien faire

Raisonnement

Pourquoi cette option ? Exposez la logique, les valeurs et les compromis

Résultat attendu

Quel résultat attendez-vous de cette décision ?

Résultat

Que s'est-il réellement passé au final ?

Leçons apprises

Avec le recul : votre raisonnement était-il juste ? Que feriez-vous différemment la prochaine fois ?

Conseils pour réussir

Write down your reasoning BEFORE you know the outcome. This pre-commitment prevents hindsight bias, where your brain rewrites history to make past decisions seem obvious
Rate your confidence level (0\u2013100%) for each decision. Tracking calibration over time reveals whether you are overconfident, underconfident, or well-calibrated
Record your emotional state at the time of deciding. Research by Antonio Damasio shows that emotions are integral to decisions, and recognizing their influence improves future choices
Note what alternatives you considered and why you rejected them. The best decisions are not just good choices \u2014 they are choices made after seriously considering the alternatives
Revisit decisions after 30, 90, and 365 days to record outcomes. The gap between predicted and actual outcomes is where your decision-making skills grow the most

Quand et à quelle fréquence écrire

Write an entry for every significant decision: career moves, large purchases, relationship choices, health changes, and strategic pivots. Minor daily decisions do not need logging, but any choice you might second-guess later deserves an entry. At the decision point, spend 10\u201315 minutes writing your reasoning and confidence. Set calendar reminders to revisit at 30, 90, and 365 days. Quarterly, review your decision history to identify recurring biases.

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