Helwig, Nathaniel - In: Psychometrika 78 (2013) 4, pp. 725-739
Parafac2 is the most flexible Simultaneous Component Analysis (SCA) model that produces an essentially unique solution …. In this paper, we discuss how Parafac2’s special sign indeterminacy affects applications of SCA, and we reveal how an … external criterion variable can be used to ensure that estimated Parafac2 weights are meaningfully signed across the levels of …