Questions tagged [mcnemar-test]

A test for dependent categorical data, such as yes/no data before & after a treatment. The McNemar-Bowker test generalizes McNemar's test for $k>2$ categories. The tests assess whether the population proportions in each pair of corresponding symmetric cells are equal.

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1answer
6k views

Where does p-value come from in McNemar's Test?

I was using this online calculator to work out McNemar's Test on this data set: I get the results: The two-tailed P value equals 0.1859 Chi squared equals 1.750 with 1 degrees of freedom. ...
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0answers
218 views

Comparison of multiple diagnostic tests with paired data

Good Day All, I am attempting to compare three diagnostic tests against a gold-standard and for simplicity sake, let us have all the outcomes be binary (disease/no disease). In this study study, all ...
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0answers
251 views

Comparing proportions from the (somewhat) same sample

I’m looking for some help on testing whether there are statistical differences between proportions when the data is dependent. By dependent, I mean that all the data is from the same participants ...
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1answer
692 views

Are binomial and McNemar's tests right for my data?

I have performed an experiment, where I have real and synthesised movie data. My participants were shown either a real movie, or a synthesised movie (of talking heads), in a random order, and had to ...
14
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2answers
2k views

Relationship between McNemar's test and conditional logistic regression

I am interested in the modeling of binary response data in paired observations. We aim to make inference about the effectiveness of a pre-post intervention in a group, potentially adjusting for ...
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0answers
75 views

Test for measuring change when you have same primary sampling units but different respondents in two waves of longitudinal survey

Which test should I apply for measuring change in proportions and means when I have same primary sampling units but different respondents in two waves of longitudinal survey? Should I apply McNemar's ...
2
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1answer
114 views

Determine if an action increases the proportion of 1s in binary data with unknown population

We're trying to improve search results, and we're trying to determine if certain changes (adding a word to a synonym list, removing it from the query, etc) have a statistically significant improvement ...
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1answer
1k views

McNemar's test for $3 \times 2$ data

I adopt a within-group experiment, such that the same participant uses 3 devices to perform a task, which has a result "pass" or fail. My data looks like this: ...
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1answer
90 views

Which test should I use to assess for the statistical signficance of changes in multiple binomial dependent variables from T1 to T2?

Students have completed a test containing 20 questions at both T1 and T2, with an intervention in the interval. Scores for each question are either 0 (incorrect) or 1 (correct). I am interested in ...
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1answer
4k views

Paired comparison chi square

I have a question related to the use of chi square test for paired data. I have read that McNemar tests would be an option but in some software like R it works only for 2x2 data (may be I do not know ...
4
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1answer
11k views

McNemar-Bowker test for comparison of two measures

I am comparing two versions of a survey (an original, and a modified) and was wondering if the McNemar-Bowker test is appropriate. The survey(s) ask respondents to indicate whether they've had an ...
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1answer
636 views

Is McNemar's Test appropriate for evaluating pre-post differences in intervention studies with a control arm?

I recently came across a paper that uses the McNemar test to evaluate the effectiveness of an intervention to improve adherence to treatment. The study used a pre/post test design whereby the ...