> Hello.  I am hoping that my question can be answered by a statistical
> expert out there!! (which I am not).  I am carrying out a multiple linear
> regression with two independents.  It seems that a square root
> transformation of the dependent variable effectively decreases
> heterocscedasticity and "linearises" the data.  However, from what I have
> read, transformations of the dependent variable introduces a bias into the
> regression, producing improper estimates after back-transforming to "real"
> units.  Does anybody out there have any knowledge of this problem, or have
> a strategy for correcting for this type of bias?  Any help would be much
> appreciated.  Thanks.
> 
> Brad.
> 
> =======================================
> Brad Case, MScF
> Spatial Data Modeller/Analyst
> 
> Canadian Forest Service
> Northern Forestry Centre
> Landscape Management/Climate Change 
> 5320-122 St. 
> Edmonton, AB  T6H 3S5
> Phone: 780-435-7384
> Fax: 780-435-7359
> ==============================================
> 
> 


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