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algorithm of levene

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Rodrigo Briceño

algorithm of levene

Dear SPSS users. I am recently trying to replicate the way SPSS uses to calculate the Levene's test for homogeneity of variances.

I reviewed the algorithm of calculation in SPSS but I have a problem because I do not know which elements are considered (since the variables are not self explained).

Does anybody has some insight about this test. My purpose is to do the calculation by hand (just in order to understand the logic the test has).

Thanks.

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Rodrigo Briceño
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Sanigest Internacional

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Marta Garcia-Granero

Re: algorithm of levene

Hi Rodrigo

Levene test is just an ANOVA on the absolute residuals: ABS(value-sample
mean). See:

http://www.itl.nist.gov/div898/handbook/eda/section3/eda35a.htm

HTH,
Marta GG

Rodrigo Briceño wrote:

> Dear SPSS users. I am recently trying to replicate the way SPSS uses
> to calculate the Levene's test for homogeneity of variances.
>
> I reviewed the algorithm of calculation in SPSS but I have a problem
> because I do not know which elements are considered (since the
> variables are not self explained).
>
> Does anybody has some insight about this test. My purpose is to do the
> calculation by hand (just in order to understand the logic the test has).
>

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For miscellaneous SPSS related statistical stuff, visit:
http://gjyp.nl/marta/

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