Oddly Wired
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decision making

You judge the morality of an action by its success.

Observers systematically rate the quality of a decision based on whether it produced a positive or negative outcome.

If a risky strategy yields a profit, people praise it as 'brilliant.' If the same strategy yields a loss, the same people condemn it as 'reckless.' You are evaluating the luck, not the logic.

Results are a poor judge of character.

Where this comes from

Study
Baron and Hershey (1988), Outcome Bias in Decision Evaluation
What the check found
The claim accurately reflects the core finding of the seminal 1988 paper, although the 'supporting text' provided is an interpretive summary rather than a direct quote from the source.
Confidence
Well replicated

Related

One of these every day, and every one names the study it came from. When a finding is contested, it says so.