Traditional Dimensionality versus Essential Dimensionality
Journal of Educational Measurement Volume 28, Number 2, ISSN 0022-0655
A statistical method, W. F. Stout's statistical test of essential unidimensionality (1990), for exploring the lack of unidimensionality in test data was studied using Monte Carlo simulations. The statistical procedure is a hypothesis test of whether the essential dimensionality is one or exceeds one, regardless of the traditional dimensionality. (SLD)
Nandakumar, R. (1991). Traditional Dimensionality versus Essential Dimensionality. Journal of Educational Measurement, 28(2), 99-117.