CM: Biostatistics Flashcards
1
Q
What are examples of dichotomous, multi-category nominal, multi-category ordered, and continuous (or interval) variables?
A
dichotomous: sex, died (Y or N)
name, hospital, service
class rank (qrts), agecats
height, weight, age
2
Q
What is a regression analysis?
A
computer algorithm finds the line that minimizes the sum of the squared residuals
3
Q
What is the standardized mortality (or morbidity) ratio?
A
special statistical technique to test whether the incidence if a dz is greater than expected
