L2 learners of Japanese have been said to resolve scope ambiguity in question fragments in a manner similar to native speakers; they use the processing strategy that requires shorter dependency between a whphrase and a question morpheme -KA (Lieberman et al. 2006). This study investigates how L2 learners perform with regard to ambiguous wh-sentences in Japanese when more than one processing strategy is involved. We have demonstrated that not only the strategy to require shorter dependency but also the strategy related to case particle affects acceptability judgments of Japanese wh-questions. In addition, we suggested that a specific L1 property (clausal typing in L1) may be a determinant in the selection of processing strategies
