I am using the following two-sample tests for non-normal distributions:
chi2gof
kstest2
ranksum
kruskalwallis
All of them return a p-value, i.e. a p-value for chi2gof, a p-value for kstest2, a p-value for ranksum, and a p-value for kruskalwallis.
Since the p-value is not enough to understand the data/distributions (for example, please see Sullivan & Feinn (2012), Dunkler et al.(2020), Greenland (2016), and du Prel et al. (2009)), I would like to calculate the effect size, the statistical power of the test, and the confidence interval (of hypothesis testing).
I would use the following MATLAB functions:
meanEffectSize (two-sample effect size computations)
sampsizepwr (power of the test)
not found anything about the confidence interval..
However:
I am not sure if both functions, meanEffectSize and sampsizepwr, can be "compatible" with (i) non-normal distributions and (ii) with the 4 previously mentioned tests.
According to the documentation I found on sampsizepwr, it looks like that the calculation of the statistical power of the test works only with normal distributions, but I am not sure.
Those 4 mentioned tests do not provide the confidence interval. Maybe other MATLAB function do, but I was not able to find them.
I have then 2 questions:
Question 1. Is there anyone who could kindly enlighten me on the "compatibility" of meanEffectSize and sampsizepw with with (i) non-normal distributions and (ii) with the 4 previously mentioned tests?
Question 2. Is there anyone who could kindly tell me if there are MATLAB functions to calculate the confidence intervals for the 4 mentioned statistical tests?I am using the following two-sample tests for non-normal distributions:
chi2gof
kstest2
ranksum
kruskalwallis
All of them return a p-value, i.e. a p-value for chi2gof, a p-value for kstest2, a p-value for ranksum, and a p-value for kruskalwallis.
Since the p-value is not enough to understand the data/distributions (for example, please see Sullivan & Feinn (2012), Dunkler et al.(2020), Greenland (2016), and du Prel et al. (2009)), I would like to calculate the effect size, the statistical power of the test, and the confidence interval (of hypothesis testing).
I would use the following MATLAB functions:
meanEffectSize (two-sample effect size computations)
sampsizepwr (power of the test)
not found anything about the confidence interval..
However:
I am not sure if both functions, meanEffectSize and sampsizepwr, can be "compatible" with (i) non-normal distributions and (ii) with the 4 previously mentioned tests.
According to the documentation I found on sampsizepwr, it looks like that the calculation of the statistical power of the test works only with normal distributions, but I am not sure.
Those 4 mentioned tests do not provide the confidence interval. Maybe other MATLAB function do, but I was not able to find them.
I have then 2 questions:
Question 1. Is there anyone who could kindly enlighten me on the "compatibility" of meanEffectSize and sampsizepw with with (i) non-normal distributions and (ii) with the 4 previously mentioned tests?
Question 2. Is there anyone who could kindly tell me if there are MATLAB functions to calculate the confidence intervals for the 4 mentioned statistical tests? I am using the following two-sample tests for non-normal distributions:
chi2gof
kstest2
ranksum
kruskalwallis
All of them return a p-value, i.e. a p-value for chi2gof, a p-value for kstest2, a p-value for ranksum, and a p-value for kruskalwallis.
Since the p-value is not enough to understand the data/distributions (for example, please see Sullivan & Feinn (2012), Dunkler et al.(2020), Greenland (2016), and du Prel et al. (2009)), I would like to calculate the effect size, the statistical power of the test, and the confidence interval (of hypothesis testing).
I would use the following MATLAB functions:
meanEffectSize (two-sample effect size computations)
sampsizepwr (power of the test)
not found anything about the confidence interval..
However:
I am not sure if both functions, meanEffectSize and sampsizepwr, can be "compatible" with (i) non-normal distributions and (ii) with the 4 previously mentioned tests.
According to the documentation I found on sampsizepwr, it looks like that the calculation of the statistical power of the test works only with normal distributions, but I am not sure.
Those 4 mentioned tests do not provide the confidence interval. Maybe other MATLAB function do, but I was not able to find them.
I have then 2 questions:
Question 1. Is there anyone who could kindly enlighten me on the "compatibility" of meanEffectSize and sampsizepw with with (i) non-normal distributions and (ii) with the 4 previously mentioned tests?
Question 2. Is there anyone who could kindly tell me if there are MATLAB functions to calculate the confidence intervals for the 4 mentioned statistical tests? effect size, statistical power, confidence interval, chi2gof, kstest2, ranksum, kruskalwallis MATLAB Answers — New Questions

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