Think Better · 45 sec
Survivorship bias
A compact thinking tool for spotting patterns and avoiding mistakes.
The useful idea
- The useful idea
Survivorship bias or survivor bias is a statistical error that results from concentrating on entities that passed a selection process while overlooking those that did not.
- How it works
This can lead to incorrect conclusions because of incomplete data.
- Why it matters
Survivorship bias may lead to overly optimistic beliefs because multiple failures are overlooked, such as when companies that no longer exist are excluded from analyses of financial performance.
Why this matters
Use Survivorship bias as a quick check before trusting your first conclusion.
Try this
Use Survivorship bias as a quick check before trusting your first conclusion.
Test your recall
Which idea belongs to the explanation of Survivorship bias?
- How it works
- The useful idea — correct
- Why it matters
Survivorship bias or survivor bias is a statistical error that results from concentrating on entities that passed a selection process while overlooking those that did not.