DyFApak (1,537,330 bytes) - Dynamic Factor Analysis. DyFA is a DOS program for carrying out exploratory or confirmatory factor analyses of lagged correlation matrices. It may be called from Windows Explorer and operated under Windows. A multivariate autoregressive time series with moving average residuals is assumed for common factors. DyFA is suitable for analyzing Cattell P-Technique data. Version 2.04 of DyFA is now available.