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The present study aims to determine the predictive validity of the 10-item Dutch Restrained Eating Scale. The ultimate criterion of restrained eating is the degree to which an individual eats less than he or she actually would like to eat. Since a study on both actual food consumption and restriction of food intake is very complicated, if not impossible, the difference between actual and desired intake of energy was studied indirectly, that is, from estimates of deviations from the required energy intake. The relationships were studied between restrained eating scores and the magnitude of the deviation from energy requirement, and between restrained eating scores and intake of fat and sugar, because restriction in intake of these may also reflect dietary restraint. About 20% of the variance of scores on the Restrained Eating Scale could be explained from these measures of food intake, which suggests that the Dutch Restrained Eating Scale has moderate to good predictive validity.
Strien et al. (1986) studied this question.