Introduction: We present an ordinal logistic regression model for identification of items with differential item functioning (DIF) and apply this model to a Mini-Mental State Examination (MMSE) ...

Most discussions of ordinal variables in the sociological literature debate the suitability of linear regression and structural equation methods when some variables are ordinal. Largely ignored in ...

An alternative model for ordinal traits is the so-called multivariate model or cumulative threshold model, in which we formulate the ordinal trait analysis as a multivariate problem.