Decision Making
What decision making is, the step-by-step process behind a good decision, the main types and models, and the biases that quietly derail us — with worked examples and a free reasoning test to sharpen the thinking underneath.
Decision making is the process of choosing between options to reach a goal. Good decisions rarely come from a flash of insight — they come from a clear process, the right method for the situation, and an awareness of the biases that quietly distort judgement.
The decision-making process
| Step | What you do |
|---|---|
| 1. Define | State exactly what you are deciding and what a good outcome looks like. |
| 2. Gather | Collect the information that actually bears on the choice — and notice what you are assuming. |
| 3. Identify options | List the real alternatives, including ones that are not obvious. |
| 4. Weigh | Score the options against explicit, weighted criteria rather than a gut reaction. |
| 5. Decide & act | Choose, commit, and implement — a decision not acted on is no decision. |
| 6. Review | Check the result against what you predicted, and learn from the gap. |
Types of decision
Decisions come in kinds — strategic, tactical or operational by level; programmed or non-programmed by routine; and individual or group by who decides. Knowing which you face tells you how much process it deserves. See the full breakdown on types of decision making.
Models that structure a decision
Within the process, named decision-making models do the work — the rational model and decision matrix for comparable options, recognition-primed decisions for experts under pressure, and the Vroom-Yetton model for deciding who should decide. When values conflict, use the ethical decision-making frameworks.
The biases that derail decisions
| Bias | What it does |
|---|---|
| Confirmation bias | Favouring evidence that fits what you already believe. |
| Anchoring | Over-relying on the first number or option you see. |
| Sunk-cost fallacy | Continuing because of past investment rather than future merit. |
| Overconfidence | Trusting your judgement more than the evidence warrants. |
| Availability bias | Overweighting whatever comes to mind most easily. |
How to decide better
Use explicit criteria instead of a gut call on big decisions, seek evidence that would prove you wrong, and review outcomes to calibrate your judgement. The reasoning underneath — testing assumptions and weighing evidence — is exactly what the critical thinking test measures. See it applied in our decision-making examples.
Frequently asked questions
What is decision making?
Decision making is the process of choosing between options to reach a goal — by defining what you are deciding, weighing the options against clear criteria, choosing, and reviewing the outcome. Good decisions come from a clear process and an awareness of the biases that distort judgement.
What are the steps in the decision-making process?
A reliable sequence: 1) define the decision and your goal, 2) gather relevant information, 3) identify the options, 4) weigh them against explicit criteria, 5) choose and act, 6) review the result. Most models are variations on these steps.
What are the types of decision making?
Decisions are often classed as strategic, tactical or operational; programmed (routine) or non-programmed (novel); and individual or group. Each suits a different situation — see our types of decision making page.
What biases affect decision making?
Common ones include confirmation bias (favouring evidence that fits your view), anchoring (over-relying on the first number), sunk-cost thinking, and overconfidence. Naming them is the first step to countering them; the critical thinking test measures the reasoning that resists them.