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556588
Bias and Error
Description
Notes from Doctors in Training
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step 1 prep
usmle step 1
step 1 prep
Mind Map by
snlogel
, updated more than 1 year ago
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Created by
snlogel
almost 11 years ago
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Resource summary
Bias and Error
Statistical distribution
Mean: average
Median: middle value
Mode: most frequent value
Hypothesis testing
H0: null hypothesis
H1: alternative hypothesis
Type I error (alpha)
Rejects null hypothesis
Reality: no association between exposure and outcome
"False positive error"
Type II error (beta)
Accepts null hypothesis
Reality: association between exposure and outcome
"False negative error"
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