EBM Flashcards
1
Q
What constitutes a type I error in hypothesis testing?
A
Rejecting H0 when H0 is actually true
2
Q
What constitutes a type II error in hypothesis testing?
A
Accepting H0 when H0 is actually false
3
Q
Define incidence:
A
(# of new events) / (# of people at risk)(time)
4
Q
Define prevalence:
A
(# of people with event) / (# of people in a population)
5
Q
What is the relative risk or risk ratio (RR)?
A
prevalence (pop 1)/ prevalence (pop 2)
6
Q
How do hou calculate on odds ratio (OR)?
A
cross products (ad/bc)
7
Q
Define validity in context of a study:
A
The study measures what it intends to measure
8
Q
Define reliability in context of a study:
A
Measurements taken are repeatable
