Questions tagged [cochran-armitage]
The Cochran-Armitage trend test is used to evaluate the association between a binary outcome (e.g., disease or no disease) and a categorical variable with ordered levels (e.g., age groups).
4 questions
2
votes
2
answers
2k
views
What are the assumptions of the Cochran-Armitage test for trend?
I have actually three questions about the Cochran-Armitage test for trend, which tests for an association between a binary variable and an ordinal one:
Is it valid if the expected
cell count is low (&...
1
vote
0
answers
27
views
Confidence interval in cochrane armitage test
Hi I am looking to use the cochrane armitage trend test. I have applied to my yearly data set using excelstat software. How do I get confidence interval in cochrane armitage trend test. Excelstat ...
2
votes
2
answers
452
views
Can I apply a Cochran-Armitage test (chi-squared linear trend test) to compare two categories of data?
I have a problem where I am trying to determine whether there is statistical significance from two groups of data.
I have two columns which show the frequency of visits to their personal trainer based ...
3
votes
0
answers
171
views
Counter-intuitive result from Cochran Armitage trend test and glm binomial
My question is motivated by the Q&A at How to test the increase of proportions.
The question is how to test for a trend in proportion between events and non-events given an ordinal risk of 3 ...