Measuring by judgement.
Measurement in many industrial and practical contexts is done by human judgement. These judgements group the possible measures into about seven categories, such as large, medium and small in relation to the expected average and range of the values. The number of categories used in judgement can be increased by allowing more time for judgement, by using multi-dimensional representations, by giving knowledge of results, and by providing a constant comparison value. The discriminating accuracy of judgement can be improved by reducing the range of values to be judged. The use of these judgements in scale reading and personal ratings is discussed.
Bainbridge
L
L
Department of Psychology, University of Reading.