Re: Grid Stability

Richard Bell (
Fri, 08 Nov 1996 10:24:12 +1000

Dear Bill,

More years ago than I would care to admit to I published a paer with Terry
Keen using in which we looked at this problem using change in cognitive
complexity (as defined by element intraclass correlation) as a criterion.
The reference is:

Bell R. C., & Keen, T. R. (1980) A statistical aid for the grid
administrator. International Journal of Man-Machine Studies, 13, 143-150.

It also appears in Mildred Shaw's edited compilation 'Recent Advances in
Personal Construct Technology' London: Academic Press, 1981.

Richard Bell

At 09:09 AM 11/7/96 +0000, you wrote:
>Two problems with construct elicitation seem to be eliciting the constructs
>in the first place and avoiding duplications or trivisl paraphrases in the
>second. Getting a decent sample of construing behaviour should be of
>paramount importance for our understanding and these problems inhibit this.
>(Many published grids seem to be pretty small, even for quite restricted
>domains of enquiry.) How do we know when a sample of constructs is big
>enough and representative enough? In discussion with a colleague the other
>day we wondered about grid stability as an indicator. Presumably if we do
>successive analyses as we successively elicit constructs these should
>converge on a stable structure, i.e. the order of components' contributions
>to variance, and the number and construct loadings of components, should
>become increasingly stable, with only some redistribution of small amounts
>of variance as newly elicited constructs are added to the analysis.
>If that makes sense, could anyone point us at any work on this? If it
>doesn't, any contribution to our re-education would be welcomed!
>Bill Ramsay,
>Dept. of Educational Studies,
>University of Strathclyde,
>Jordanhill Campus,
>G13 1PP,
>'phone: +44 (0)141 950 3364
> 'fax: +44 (0)141 950 3367
Richard C Bell
Department of Psychology
University of Melbourne
Parkville Vic 3052 Australia
Phone: +61 (0)3 9344 6364
Fax: +61 (0)3 9347 6618