Apparently identical verbs can be represented differently. Comparing L1-L2 inflection with contingency-based measure ΔP

We propose a method that models unidirectional, contingency-based association scale ΔP in order to analyse the different degrees of morpheme productivity in apparently identical L1-L2 inflected pairs. The method has the potential to uncover differences in how in L1-L2 inflected items are represented by L2 learners and native speakers. Such differences are at risk of remaining invisible if one considers only frequency, distribution and rank of predicates.