How Much Data?
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myblog
Introduction
Why You Need Sample-Size Planning
What Not To Do
Effect Sizes
Three Approaches
Planning for Power
Planning for Precision
Planning for Evidence
Model Sample-Size Plans
Decreasing Sample-Size Needs
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myblog
Interaction Power Planning Tool: Intxpower.com
news
tools
Planning for complex designs is tough! Interactions can often be smaller than simple effects, and uncertainty for interactions is generally higher than for simple effects.
Oct 31, 2024
Bob Calin-Jageman
Stop Fooling Yourself - paper by Richard Born
news
papers
Just as important as a reasonable sample is good study design that mitigates the risks of bias.
Oct 29, 2024
Bob Calin-Jageman
statpsych for Sample-Size Planning
news
tools
One great tool for sample-size planning is the statpsych package by Doug Bonett.
Oct 20, 2024
Bob Calin-Jageman
Welcome To How Much Data
news
This is the first post to the How Much Data blog! More to come!
Oct 1, 2024
Bob Calin-Jageman
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