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control groups
Users' Guides to the Medical Literature
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Part A The Foundations > Chapter 5. Why Study Results Mislead: Bias and Random Error >
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Part F Summarizing the Evidence > Chapter 20.2. Fixed-Effects and Random-Effects Models >
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Part B Therapy > Chapter 10.3. What Determines the Width of the Confidence Interval? >
The Rational Clinical Examination
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Menopause > Original Article: Is This Woman Perimenopausal? > Methods > Search Strategy and Quality Review >
EDUCATION GUIDES
Users' Guides to the Medical Literature EDUCATION GUIDES
GLOSSARY
Absolute difference
The absolute difference in rates of good or harmful outcomes between experimental groups (experimental group risk, or EGR) and control groups...
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