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GRIDSCAL |
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GRIDSCAL is a DOS-based
menu-driven
program designed for multiple grids that have constructs or elements (or both) in common. It is
principally designed to carry out individual differences
multidimensional scaling of the common feature of the grids (either
elements or constructs). These common constructs (say) can be
represented as points in a multidimensional space that is common to one
of the other features (usually grids but in this case could be
elements). Weights are derived for this aspect of the data (i.e. the
grids) which represent the emphasis each individual grid places on the
common construct dimensions. The third facet of the data (in this case
elements but could be grids) is used to provide the construct
similarities (correlations or distances). [Examples of this kind of
analysis can be seen Fransella, Bannister, and Bell (in press) or
Leach, Freshwater, Aldridge, and Sutherland (2001)] Where both elements
and constructs are common, a simple three-mode principal
component analysis (giving loadings for elements, constructs and
grids) can also be carried out. GRIDSCAL can also provide analysis of
variance type indices, and enable testing of the commonality
of construing assumption as detailed in Bell (2000). It was put
together
by Richard Bell (Bell, 1999), is free, and is available elsewhere on
this website. |
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References
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- Bell,
R. C. (1999) GRIDSCAL: A program for analysing the data of
multiple repertory grids. [Computer software] Melbourne: Author.
- Bell,
R. C. (2000) On testing the commonality of constructs in supplied
grids. Journal of Constructivist Psychology, 13, 303-311.
- Fransella,
F., Bannister, D. and Bell, R.C. (in press) A manual for
the repertory grid technique Second edition. Chichester: Wiley
- Leach,
C., Freshwater, K., Aldridge, J., & Sunderland, J. (2001)
Analysis of repertory grids in clinical practice. British Journal
of Clinical Psychology, 40, 225-248.
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Richard C. Bell
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