mcnemar's test

  1. L

    Is a McNemar's test appropriate in this setting?

    I wrote a scientific paper on the use of two different surgical techniques on two organs in the same subject: technique A for one ovary and technique B for the contralateral ovary on 51 subjects. Cure rates for technique A was 48 out of 51, and 50 out of 51 for technique B. To evaluate these...
  2. E

    McNemar's test post-hoc power analysis problem when odds ratio=0

    I need to do post-hoc power analysis for a McNemar's test (using G*power), and am having trouble getting results. One of the discordant pairs is 0, therefore the odds ratio is zero, and it seems that power cannot be calculated using an odds ratio of 0. Is there any way around this...
  3. J

    McNemars Chi squared Test Results

    Hi All, Hope this is the right place. I am QC ing some work of my senior and I am getting some drastically different P values for McNemar's tests. I'm using stata. Here is an example: Base Week 4 0 0 0 1 1 0 3 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 1 1 2 0 0 3 0 3 1 2 1 2...
  4. N

    Comparing the accuracy of two diagnostic tests applied on the same sample

    Hi there, I have recently come across some data that compares the accuracy of two diagnostic tests. We have 214 samples which are tested positive using a "gold standard" test. Using diagnostic test A, 145 / 214 (67.8%) were tested positive, whereas using diagnostic B, 213 / 214 (99.5%) were...