Free‐choice profiling has been used to collect descriptive sensory data from both trained and untrained assessors, though untrained assessors may have difficulty in generating sufficient and adequate descriptors. The more structured repertory grid method has been used as an alternative procedure, and is thought to help assessors in vocabulary development. To compare these two procedures, panels of assessors used them to describe the sensory properties of 25 ciders. Generalized Procrustes analyses of the two data sets provided broadly similar results, but the repertory grid method yielded more descriptors and interpretation of the resulting product space was slightly easier. However, the repertory grid method took slightly longer to carry out, and it was concluded that neither method was clearly superior.
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Piggott et al. (1992) studied this question.
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