Evidence-Based Practice / Unit 10 EBP 1387 short lesson, about 20 seconds
Power and the Size of the Project
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The idea
The effect a project can detect is anticipated in advance through a power analysis, conventionally at a power of 0.80 and an alpha of 0.05.
In practice
A projected effect and the number of participants needed to detect it.
Where people slip
A project too small to detect the change it seeks will report no difference whatever happens. That is a design result, not a finding.
Your place on the trail
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Builds on
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