Band-Altman Graphs Flashcards
1
Q
What is a bland-altman graph for?
A
A way too check how well two methods of measurement agree with each other.
2
Q
What does a bland-altman graph help you see?
A
If the two methods are similar enough to be used interchangeably.
If there are any patterns or biases in their differences.
3
Q
What is the bias in a bland-altman graph?
A
Average difference between pairs.
4
Q
What is the limit of agreement in bland-altman graphs?
A
+/- 1.96xSD
5
Q
When is there a good agreement in bland-altman graphs?
A
narrow limits of agreement
bias 0 inside these limits
most observations within these limits
