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⇤ ← Revision 1 as of 2006-08-22 15:27:09
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||||||<20% style="TEXT-ALIGN: center"> '''F''' ||<30% style="TEXT-ALIGN: center"> '''F^-1''' ||<50% style="TEXT-ALIGN: center"> '''Variance F^-1''' || ||||||<20% style="TEXT-ALIGN: top"> Ln(m) ||<30% style="TEXT-ALIGN: top"> e^m ||<50% style="TEXT-ALIGN: top"> (e^2m s^2) /n || |
It is sometimes necessary to transform data to, for example, downweight the influence of outliers, prior to performing any analysis. The reciprocal of reaction times is used for this purpose.
A transformed mean, m, with variance s2 on a sample of size, n, has a backtransformed variance (ie on the original scale) given below.
F |
F-1''' ||<50% style="TEXT-ALIGN: center"> '''Variance F-1 |
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Ln(m) |
em ||<50% style="TEXT-ALIGN: top"> (e2m s^2) /n |
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