Abstract
When multidimensional tests are analyzed, the item structures that are obtained by Exploratory Factor Analysis are usually rejected when tested by Confirmatory Factor Analysis. This paper analyzes some of the aspects of the problem by means of simulation studies, and proposes a procedure that may be useful for dealing with the problem. The procedure is illustrated by means of an empirical example. Key words: Confirmatory Factor Analysis, Exploratory Factor Analysis, Dimensionality assessment, goodness of fit in structural equation models.