When measuring participant-reported attitudes and outcomes in the behavioral sciences, there are many instances when the common measurement assumption of unidimensionality does not hold. In these ...

We examined the feasibility and results of a multilevel multidimensional nominal response model (ML-MNRM) for measuring both substantive constructs and extreme response style (ERS) across countries.

AECOM Technology Corporation, a leading provider of professional technical and management support services for government and commercial clients around the world, announced today that it has released ...