Abstract
A method for investigating whether a set of items satisfies the conditions of a ‘latent scale’ is proposed. It is based on an adaptation of the latent class model in which the requirement of ‘double monotony’ is translated into systems of inequalities on the item response probabilities. The problem of obtaining the maximum likelihood estimates of the model parameters is discussed. Finally, this method is applied to real data from a large survey.
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More From: British Journal of Mathematical and Statistical Psychology
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