40 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
Borrelia recurrentis Infection - Spirochetes were visible (arrows), a finding that suggested louseborne relapsing fever #Clinical
were visible (arrows ... Smear #Microscopy #NEJM
Nystagmus from Wernicke’s Encephalopathy - Magnetic resonance imaging of the brain showed T2 hyperintensities involving the
thalami (Panel B, arrows ... MRI #Thalamus #NEJM
Auer Rods - Bone marrow aspiration revealed 5% blasts and 65% promyelocytes; many promyelocytes had prominent
prominent Auer rods (arrows ... Smear #Microscopy #NEJM
Urinary Tract Tuberculosis - Contrast-enhanced computed tomography (CT) of the abdomen showed mild dilatation of the
Panels A and B, arrows ... ureter (Panel C, arrows ... AcidFastBacilli #Microscopy #NEJM
Creutzfeldt-Jakob Disease - Magnetic resonance imaging (MRI) revealed hyperintensity of the cortical gyri of the frontal
sides (Panel B, arrows ... CreutzfeldJakob #NEJM
Emphysematous Prostatitis - Radiography of the kidney, ureter, and bladder showed an atypical focus of gas
ramus (Panel A, arrows ... #Prostatitis #NEJM
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
Tinea Versicolor - Physical examination revealed large, coalescing, hypopigmented patches and macules on her torso and
melanocytes (Panel B, arrows ... Microscopy #Spaghetti #NEJM