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Abstract Instruction is a valid and useful aspect of education, although for meaningful and valued learning to take place there must be some reorganization of the material by the learner. Psychological tools which have been offered to the learner in the past to bring into his awareness the structure of his models and his model‐building facilities have been on the whole unhelpful. The repertory grid is one such tool which with the new methods of computer analysis developed by the authors has been transformed into a sensitive instrument that allows an individual to form a model of any topic he wishes in terms of his personal constructs. The computer programs FOCUS, PEGASUS, MINUS, CORE, SOCIOGRIDS and ARGUS are briefly described.
Shaw et al. (Mon,) studied this question.