Type II error
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What does it mean?
A Type II error occurs when a false null is not rejected. Its probability, β, is defined for a particular alternative effect and design.
Think through an example.
An everyday example
A new interface may truly reduce time, but a small, variable sample may fail to detect the difference.
Test your understanding.
True or false?
For a specified alternative, 80% power implies a 20% Type II error probability.
Make the next connection
Explore related concepts to deepen your understanding.
Sources and further reading
Explore the foundations and methodological details in these resources. Examples on this page were created for illustration.
- OpenStax Source in EnglishOutcomes and the Type I and Type II Errors