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Skill Gym · Execution

Decision Making

Decide well with incomplete information, and notice when you are fooling yourself.

Rep 1 of 8 · difficulty 2/60 correct
Bias Trap

Adaptive rule: two correct in a row raises difficulty, one miss lowers it. Accuracy so far 0%.

Mastery
0
Score
0% of target 84
Reps logged0
Accuracy0%
Difficulty2 / 6
Method
Pre-mortem
from Gary Klein's decision research

Assume it failed, then list why — before you commit.

Game task
Bias Trap

Spot the cognitive bias steering each scenario.

See this skill on your development profile
Arcade · 60-second games

Play to train decision making

🏆 0Colour Clash⏱ 60s
Focus & impulse control · 60 seconds
Colour Clash

A colour word flashes in a different ink for a blink, then hides. Tap the INK colour you saw, not the word you read.

Your best: 0

Beginner level

Start here: learn it, check it, use it

Beginner lesson

Before deciding, imagine the plan has already failed and ask why. It exposes risks early.

  1. Write the decision.
  2. List at least two options.
  3. Pre-mortem: 'It failed — why?'
  4. Pick, and note what would change your mind.
Worked example: Choosing a science-fair project: 'It failed because materials arrived late' → order materials this week.
Beginner check · 0/3
A pre-mortem asks:
How many options should you compare at minimum?
Good decisions can still have bad outcomes because:
Real-life task

Use a pre-mortem on one real choice this week (a club, a purchase, a plan) and write down what you learned.

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