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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.

  • 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.

Richard C. Bell

Establ. 2003
Last update: 15 February 2004