Noteworthy progress has been made in the development of statistical models for evaluating the structure of vocational interests over the past three decades. It is proposed that historically significant interest datasets, when combined with modern structural methods of data analysis, provide an opportunity to re-examine the underlying assumptions…

This document provides a current assessment of the role and character of longitudinal studies. Eighteen articles define this type of study, discuss its applications to the educational process, advise when to use longitudinal inquiry, and describe barriers formed by lack of statistical techniques in manipulating the data. The traditional argument…