When a project falls behind schedule, the first explanation offered may become the story everyone repeats. If the team believes the issue is poor supervision, it may notice late attendance and overlook design changes, missing materials or unclear approvals. Confirmation bias is the tendency to favor information that supports an existing expectation.
The core idea
Critical thinking does not require doubting everything. It requires designing a fair test of a claim. A strong decision separates observations, hypotheses and evidence, and asks what could change the current conclusion.
How to apply it
- Write your current explanation as a testable hypothesis rather than as a fact.
- Ask what evidence would support the hypothesis and what evidence would refute it.
- Look for disconfirming information from independent sources, including people who see the problem differently.
- Compare alternative explanations using the same criteria and time period.
- Document the decision and the uncertainty that remains; arrange a review when new information arrives.
A workplace example
A hiring panel is impressed by a candidate’s confident opening. Instead of interpreting every later answer as confirmation of competence, the panel scores all candidates against predefined role criteria, probes examples consistently and checks references. Confidence remains one signal, not the sole conclusion.
What to watch out for
People may recognize bias in others while underestimating it in themselves. A checklist helps, but it does not make judgment perfectly objective. Strong evidence may still justify an initial view; the goal is to test it fairly, not to force an alternative answer.
Practice and reflect
For one decision this week, write a sentence beginning, “I would change my mind if…”