Discerning - Version MIXOR -Programming Software

MIXOR was the first program developed as part of the Mixed-up Suite of applications. MIXOR is a program which provides estimates for a mixed-effects ordinal probit and logistic regression model. This model can be used for analysis of clustered or longitudinal ordinal (and dichotomous) outcome data. For clustered data, the mixed-effects model does not assume that each observation is independent, but does assume data within clusters are dependent to some degree. The degree of this dependency is estimated along with estimates of the usual model parameters, thus adjusting these effects for the dependency resulting from the clustering of the data. Similarly, for longitudinal data, the mixed-effects approach can allow for individual-varying intercepts and slopes across time, and can estimate the degree to which these time-related terms vary.