Levene's test is a statistical test used to assess whether the variance differs across a number of populations, based on samples from these populations (http://en.wikipedia.org/wiki/Levene%27s_test). This test is sometimes used to justify the assumption of homogeneity of variance when using ANOVA or ...
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Comparison of p values for Levene mean test and Levene median test?
I am doing Levene's mean test and Levene's median test (Brown-Forsythe).
I want to compare the p-values of these two tests to see which is better.
I get large p-values for both tests which are 0.562 ...
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Can I justify performing a two-way anova where data is normally distributed but has heterogeneous variances?
I'm an undergraduate psychology student currently finishing up my dissertation, but a few days ago, while going through my SPSS output, I realized my Levene's test is significant, but my data is ...
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Statistical tests affected by the mean values of the two samples
The experiment consisted of this :
31 devices of type $A$
26 devices of type $B$
All the 57 devices were side by side in order to measure the level of ambiant radiation.
So, I have the doses for ...
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Data-transformation of data with some values = 0 [duplicate]
Possible Duplicate:
How should I transform non-negative data including zeros?
I want to log-transform some of my data because the Levene's homogeneity of variances test rejected the null ...
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How to use Levene test function in R?
I'm a newbie to statistics and R and I have a trouble with using Levene function (I would like to check the equality of variance of two samples).
The documentation says that I should run:
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Interpretation of the p-values produced by Levene's or Bartlett's test for homogeneity of variances
I have run Levene's and Bartlett's test on groups of data from one of my experiments to validate that I am not violating ANOVA's assumption of homogeneity of variances. I'd like to check with you guys ...
