Understanding Power and Rules of Thumb for Determining Sample Sizes
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Abstract
This article addresses the definition of power and its relationship to Type I and Type II errors. We discuss the relationship of sample size and power. Finally, we offer statistical rules of thumb guiding the selection of sample sizes large enough for sufficient power to detecting differences, associations, chi-square, and factor analyses.
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The record
- Venue
- Tutorials in Quantitative Methods for Psychology
- Topic
- Advanced Statistical Methods and Models
- Field
- Mathematics
- Canadian institutions
- —
- Funders
- —
- Keywords
- Rule of thumbSample (material)Power (physics)Sample size determinationThumbEconometricsComputer sciencePsychologyStatisticsMathematicsGeologyAlgorithmChemistryPhysicsChromatographyThermodynamicsPaleontology
- Has abstract in OpenAlex
- yes