13 results
TYPE I & TYPE II ERRORS 

SENSITIVITY & SPECIFICITY = SNOUT & SPIN 
Sensitive Tests that
TYPE I & TYPE II ERRORS ... #Type1 #Type2 #Errors ... #Biostatistics
P-Value Significance - Visualized in number of "heads in a row"

- Jonas Obleser, PhD - https://twitter.com/jonasobleser

#PValues
Significance #heads #CoinFlip ... #Biostatistics
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
Important Biostatistics ... vs Specificity Mnemonic ... = Rule IN #Biostatistics ... calculations #diagnosis #mnemonic
Likelihood Ratios - Probability
Remember 2/5/10 and 15/30/45:
 • LR of 2 increases the probability by 15%
LRs #diagnosis #biostatistics ... probabilities #mnemonic
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Epidemiology and Biostatistics ... Affected by random error ... by systematic error ... true Type II (β) error ... #Epidemiology #Biostatistics
Specificity Calculation - Probability that a test correctly identifies those without the disease (true negative rate)

Specificity
#Specificity #Biostatistics ... calculations #diagnosis #mnemonic
Sensitivity Calculation - Probability that a test correctly identifies those with the disease (true positive rate)

Sensitivity
#sensitivity #Biostatistics ... calculations #diagnosis #mnemonic
Positive Predictive Value Calculation - Probability that someone with a positive test actually has the disease

Positive
PositivePredictiveValue #PPV #Biostatistics ... calculations #diagnosis #mnemonic
Negative Predictive Value Calculation - Probability that someone with a negative test truly does not have
NegativePredictiveValue #NPV #Biostatistics ... calculations #diagnosis #mnemonic
PLATELETS Mnemonic for Causes of Thrombocytopenia

P - Platelet Disorders (DIC, ITP, TTP)
L - Leukemia, Lymphoma
A -
PLATELETS Mnemonic ... Liver Disease, Lab error ... #PLATELETS #Mnemonic