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Computer programmes for the analysis of Repertory Grids


Essential reading

When using the Repertory Grid Technique, it is advised to read the fundamentals:
  • Fransella F, Bell, R, Bannister D (2003). A manual for repertory grid technique. 2nd ed. Chichester: Wiley.
  • Jankowicz, A D (2003) The Easy Guide to Repertory Grids. Chichester: Wiley.



Using SPSS

Repertory Grids can be analysed using procedures that are parts of standard statistical packages such as SPSS. Richard Bell (Melbourne) in an unpublished paper titled 'The Analysis of Repertory Grid Data using SPSS' gives recommendations. It is obtainable for free from him at this site.



Specific programmes

There are a number of computer programmes developed specially for the analysis of repertory grids available that run on PCs. Some are relatively expensive (around 500 US $), some are available on a shareware type basis (or free), some are on-line accessible through the Web. 
Most of them offer one or more of the following procedures:
  • a number of indices characterising grid
  • properties of single constructs or elements
  • relationships between single constructs (e.g. as correlations) or elements (e.g. as distances)
  • structural relationships between constructs or elements (factor analysis, principal component analysis or correspondence analysis, cluster analysis, formal concept analysis)
  • structural relationships between constructs and elements (e.g. single value decomposition after Eckart and Young)
The pioneering work has been done by the late Patrick Slater in the Sixties. It worked on mainframe computers and was DOS-based. It consisted of: 
INGRID: "Principal Components Analysis", essentially an Eckart & Young decomposition, construct intercorrelations, inter-element distances.

COIN, PREFAN, DELTA: various extensions, e. g. comparison of two grids, joint analysis of several grids etc.
There was no graphical output.



Some DOS based programmes are probably no more in use as WINDOWS has become the dominating operating system:
  • FLEXIGRID, by Finn Tschudi
  • OMNIGRID by Jack Adams-Webber and Kenneth Sewell . 
  • CIRCUMGRIDS, by William Chambers

 

The only attractive package still in DOS is by Richard Bell:

GRIDSTAT and GRIDSCAL (with GRIDSTAT replacing the older G-Pack).

The programmes are written in DOS which makes the output "amazingly primitive" as Richard writes (I would prefer "charmingly old-fashioned"). The packages offer several options for every procedure (like factor analysis and cluster analysis) which is attractive for the expert (who then knows what s/he is doing) but may be a bit confusing for the low-profile grid user who is happy to use some kind of standard procedure. GRIDSCAL allows simultaneous processing of several grids.
Another advantage: GRIDSTAT and GRIDSCAL are available for free from his site.



WINDOWS based programmes
 
Programmes vary as to the degree the underlying maths is made explicit; some appeal to users who are not interested in the specifics. Some have special prices for use on more than one computer; some offer licences for one year or more. Some have free online versions. Some offer free demo versions with limited capacity. Details are available on the web sites.

     Version Costs
REP 5
Mildred Shaw & Brian Gaines
Info Research version CDN $ 600
Rep IV
Mildred Shaw & Brian Gaines
Info limited capacity
students' use
free
WebGrid 5
Mildred Shaw & Brian Gaines
Info Online version free
ENQUIRE WITHIN
John Mayes
Info Version II $ 19
GRIDSUITE
Martin Fromm & Andreas Bacher
Info Version 4.0+ € 580
GRIDCOR
Guillem Feixas & Josi Manuel 
Cornejo
Info Correspondence Analysis
Version 4.0
€ 150
IDIOGRID
James Grice
Info   free
$ 105 welcome
Sci:vesco
Matthias Rosenberger & Janko Buve
Info   price list on request
Sci:vesco.grid
Matthias Rosenberger & Janko Buve
Info Online version beta 2.0 free
OpenRepGrid  
Mark Heckmann
Info  Version:  v.0.1.9 Free and Open Source



© Jörn Scheer  2015 Last update 3-July-2015