Abstract
Assessing the unidimensionality of a set of items using factor-analytic procedures. This work revises a series of factor-analytic based procedures for the dimensional assessment of sets of items with discrete response format. All of them share two properties: a) they are simple in terms of computation, so that they can be used with the standard statistical packages and with large item sets and b) they have a clear theoretical foundation which makes easy the interpretation of the results. An empirical example is also included.
