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Re: st: -metan- doesn't seem to do the Welch F-test
From
Nick Cox <[email protected]>
To
[email protected]
Subject
Re: st: -metan- doesn't seem to do the Welch F-test
Date
Mon, 11 Apr 2011 12:29:34 +0100
I don't know, but I have a minor emendation.
Roger is in meta mode and probably thinking "Cochrane collaboration".
This author was W.G. Cochran.
Nick
On Mon, Apr 11, 2011 at 12:24 PM, Roger Newson <[email protected]> wrote:
> I have a query re the -metan- command. When meta-analysing statistics from
> continuous data (eg arithmetic mean differences and geometric mean ratios),
> it seems to be using a chi-squared heterogeneity test, instead of the Welch
> heterogeneity F-test, which was recommended in the seminal paper by Cochrane
> (1954) for the case of continuous data. Is there a reason for this?
>
> Best wishes (and thanks in advance)
>
> Roger
>
>
> Reference
>
> Cochrane, W. G. 1954. The combination of estimates from different
> experiments. Biometrics 10(1): 101-129.
>
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