Questions tagged [cochran-mantel-haenszel]

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30 views

Mantel-Haenzsel Test and Fisher’s Exact Test

I am testing independence for two binary variables in the presence of a third categorical variable. I initially used Cochran-Mantel-Haenszel Test. However, the test requires all the associations for ...
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0answers
15 views

Mantel Test of Proportion : Aggregating categories different significance

I have a dataset representing for a specific marketing event editions (1 event per 1 year), the number of partecipants, and the outcome of their partecipation If In sas I use the Mantel Exact test to ...
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1answer
381 views

Why does SAS Cochran-Mantel-Haenszel seems different than others?

I've been asked to compute a Cochran-Mantel-Haenszel (CMH) Test on 2 variables : one is an ordered factor from quantiles of a numeric value ("Q1", "Q2", "Q3", "Q4") the other is an unordered ...
2
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2answers
271 views

Controlling for a third variable in chi-squared analysis

I have $n$ individuals belonging to five different groups. I would like to know if those groups have a significant impact on a certain factor $Y$ (having three possible levels, A, B and C). So, I am ...
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0answers
75 views

what is the Wilcoxon-Mantel-Haenszel?

I want to know that difference of between Wilcoxon-Mantel-Haenszel and Cochran-Mantel-Haenszel method in Shift analysis.
3
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1answer
234 views

Contradicting p-value and confidence interval in the Mantel-Haenzsel Test [R-Code]

This is a part of the appendix to a past paper I have but it is just essentially R-Code. For the Mantel-Haenszel test, the p-value is greater than 5% so I would Fail To Reject the null hypothesis ...
1
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1answer
196 views

Logistic Regression for 2x2xK data

I am very familiar with logistic regression. I have used logistic regression with data sets in which each set up independent variables has a binary (1 or 0) dependent variable. However, I have found ...
1
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1answer
338 views

Stratified Analysis + Multiple Testing

I found this article, describing a systematic approach to stratified analysis: https://www.linkedin.com/pulse/conducting-stratified-analysis-test-confounding-navneet-dhand Test crude association ...
4
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2answers
832 views

Random Effects for Mantel Haenszel

I'm familiar with the standard Mantel Haenszel method for Odds ratios and Risk ratios. Is there also a random effects method? If so, can anyone provide the formulae and/or citations? Thanks!
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0answers
34 views

Inflated Estimates in Generalized Linear Mixed Models

I have data containing 40,000 observations, coming from around 30,000 subjects. Most subjects contribute one observation, some contribute two. The dependent variable is binary (1/0), and let's say, ...
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0answers
72 views

Measuring magnitude of variation between 2 one-phase association exponential curves

I am currently testing the independence of two unpaired conditions A and B; with each condition representing a set of 12 values (aka bins) that compose a one-phase association exponential curve. Each ...
4
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1answer
2k views

logistic regression or mantel-haenszel?

For a 2x2xk table, where k are strata from repeated cross-sectional studies over the course of 10 years, would it be suitable with a Mantel-Haenszel test of common odds ratio or would a logistic ...
1
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0answers
48 views

Computational singularity error when running partial mantel test in R

I've been running a series of partial mantel tests in R using the 'ecodist' package. Each test represents a different distance hypothesis relating genetic distance to cost distance to travel through ...
0
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1answer
36 views

Mantel test permuting values instead of rows?

I mistakenly did a Mantel test by permuting the values in a dissimilarity matrix, instead of the rows of the dissimilarity matrix. I've realized that this is not the Mantel test, but I don't ...
3
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1answer
5k views

Question on SPSS Mantel-Haenzsel conditional independence output

SPSS provides these three statistics as output for the crosstabs command STATISTICS=CMH(1): Tests of Homogeneity of the Odds Ratio Tests of Conditional Independence Mantel-Haenszel Common Odds Ratio ...
3
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1answer
216 views

Partial correlations among three distance matrices

I am trying to test the hypothesis that related species should deviate more in niche space the more they overlap in geographic space. In other words, related species either forage similarly and don't ...
1
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1answer
105 views

Using Mantel to explore relationship between geographic distance and a multivariate character

I'm working with bird songs. A song is composed of many vocal parameters [highest frequency (Hz), lower frequency(Hz), bandwidth(Hz), duration (s), number of notes, and son on....] I'm interested in ...
1
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1answer
530 views

Mantel Test data assumptions

Does the Mantel Test works with non-normal distributed samples? I couldn't find anything clear enough about it.