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Hi all. Recently, while skimming through a book on ROC curves, I came across this term "monotone distribution." I tried googling it but didn't find any satisfactory answer. Can someone please...
07 February 2023 4,062 4 View
In 100 participants fingerprints from all 10 fingers were analyzed. For each finger, the fingerprint pattern was recorded as one of four categories (Loop, Arch, Whorl, or Composite). In addition...
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I have a case-control study with 200 cases and 200 controls (d == 0 for controls and d == 1 for cases). Two tests y1 and y2 are applied to each case and control and the results are coded 1 for a...
22 January 2022 8,901 4 View
Two tests were applied to the same group of people. Both tests are binary (with 0 and 1 responses). I need to test the null hypothesis that the proportion of response 1 is equal in both...
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I am measuring lung function using FEV1 (%) and CT score (range 0-30) in 20 patients at time 0 and at one year of follow up. How should I test which of the two measures (FEV1% or CT Score) shows...
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A survival analysis has been conducted based on secondary data. How can we calculate power of the study to compare mean survival among two groups of patients? The data that I have is the mean...
21 April 2016 9,501 4 View
How is the total score calculated in WHO QOL-BREF after having calculated the transformed scores for all four domains? Do we add them up or calculate a simple average? Or is there some other method?
21 August 2015 1,892 81 View
