Process Versus Outcome: Judging Decisions Instead of Results
Separate decision quality from results with a process score and the four-box decision matrix.
What you will learn
- What "resulting" is and why it teaches you the wrong lessons.
- The four-box matrix that separates good decisions from good outcomes.
- How to build a process score for every trade.
- How to compare process quality and results in your journal without overreacting to small samples.
Explanation
The beginner trading course showed you how to keep a journal, and the risk management course how to measure results in R-multiples (a result divided by the initial risk). This lesson adds a second column next to every result: the quality of the decision.
Resulting
Outcome bias is the tendency to judge a decision by its result instead of by the information and reasoning available when it was made. The former professional poker player and author Annie Duke calls this habit "resulting". A trader who breaks his rules and wins learns "rule-breaking works". A trader who follows his rules and loses learns "my rules are bad". Both lessons are wrong, because in a probabilistic activity a single result says little about the decision.
The four-box matrix
| Good outcome | Bad outcome | |
|---|---|---|
| Good process | Deserved success: repeat | Bad luck: accept, change nothing |
| Bad process | Dumb luck: the most dangerous box | Deserved loss: fix the process |
"Dumb luck" is the most dangerous box because it rewards bad habits. The dopamine response from lesson 1 makes such wins feel especially memorable.
Building a process score
A process score grades how well a trade followed your plan, independent of profit. Use four yes/no criteria, each worth one point:
- The setup was in my written plan.
- Entry, stop, target and size were defined before entry and matched my rules.
- I completed the entry protocol (lesson 5), including the state check.
- I managed and exited the trade according to the plan.
Score 4 = grade A; score 3 = grade B; score 2 or less = grade C. Record the grade before you look at the result in R, ideally right after you exit. In your weekly review, look at C-grade trades first, regardless of whether they won.
Worked example
Hypothetical example: a trader reviews ten trades. Results are in R. Fees, spreads and taxes are excluded.
| Trade | Grade | Result (R) | Matrix box |
|---|---|---|---|
| 1 | A | +2.0 | Deserved success |
| 2 | C | +3.0 | Dumb luck |
| 3 | A | −1.0 | Bad luck |
| 4 | A | −1.0 | Bad luck |
| 5 | C | −2.0 | Deserved loss |
| 6 | A | +1.5 | Deserved success |
| 7 | C | −1.5 | Deserved loss |
| 8 | A | −1.0 | Bad luck |
| 9 | C | +0.5 | Dumb luck |
| 10 | A | +2.0 | Deserved success |
Step 1, A-grade trades (6 trades): +2.0 − 1.0 − 1.0 + 1.5 − 1.0 + 2.0 = +2.5R; average = 2.5 ÷ 6 ≈ +0.42R per trade.
Step 2, C-grade trades (4 trades): +3.0 − 2.0 − 1.5 + 0.5 = 0.0R; average = 0.0R per trade.
Step 3, interpretation: the single best trade (+3.0R) was a rule break. Judged by results alone, the trader might copy it. Judged by process, he sees that C-grade trades as a group earned nothing and produced the two largest losses (−2.0R and −1.5R are both bigger than his planned −1R). The fix is in the C-grade trades, not in the A-grade losses.
Ten trades are far too few to prove anything about the strategy. The purpose here is to direct attention: which decisions need work.
Common mistake
Practice activity
On paper, place each hypothetical trade in the matrix: (a) followed every rule, stopped out at −1R; (b) entered without a setup out of boredom, won +2R; (c) moved the stop further away, lost −2.5R; (d) followed every rule, reached target at +2R. Then name the one trade that needs the most attention in the review.
Show solution
(a) Good process, bad outcome: bad luck. (b) Bad process, good outcome: dumb luck. (c) Bad process, bad outcome: deserved loss. (d) Good process, good outcome: deserved success.
Most attention: (b), because the win rewards a habit (boredom trading) that would likely be harmful over many trades. Trade (c) also needs a fix, but its loss already makes the lesson visible.
Limitations: a process score is only as good as your written plan; if the plan itself has no edge, perfect process will not create one.
Key takeaways
- "Resulting" judges decisions by outcomes and teaches wrong lessons in a probabilistic activity.
- The four-box matrix separates process from outcome; "dumb luck" is the most dangerous box.
- Give every trade a process grade before you look at its result.
- Review C-grade trades first, and change rules only after a planned review of enough trades.
Next step
The next lesson explains uncertainty and variance in depth: why even good decisions can lose, sometimes many times in a row.
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