Your CIOS file request: Q-METHOD/06099075.017 hotline item

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Received:  by CIOS Mailer; Tuesday 9 Jun 2009 07:50:17
Date:         Tue, 9 Jun 2009 13:49:37 +0200
From:         Peter Schmolck 
Subject: Re: Variance explained and bipolar factors
To:           Q-METHOD@LISTSERV.KENT.EDU
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On 09.06.2009 13:03, Louise Bryant wrote:
....

> The .lis file now shows the variance accounted for as 17, 8, 8, 10,
> 12 - which adds up to  55, i.e. 47% + another 8%. I would have
> expected the variance of the original F2 to have been split in some
> way across the new Factors F2 & F3 - why hasn't this happened? 

In terms of factor analysis, explained variance, etc. a factor split 
into its two opposite sub-types is still one single factor. PQMethod, 
when writing out the .lis file is unaware that you added "F3" as an 
inverted copy of F2 in the rotation stage. If you include the (rotated) 
factor loading matrix in your research paper you certainly should not 
report two (original and inverted) versions of factor 2 but use 
different markers for sorts that were flagged for the plus-type and 
those flagged for the minus-type.

Peter



-- 
Peter Schmolck   http://www.unibw.de/paed/esf-en/pers/schmolck