ABSTRACT
As has already been shown, the term longitudinal is used very broadly. There are many ways of collecting dynamic data – different ways are suited for different types of research – and the longitudinal term is merely the lowest common denominator of a whole family of techniques designed to identify and reveal many types of social change: from time-series techniques for repeated cross-section data to logistic and log-linear models; from structural equation models to longitudinal multilevel methods; from regression analysis to event history analysis.
