The use of blocking and inhibition training in processing instruction.

Previous research has suggested that L2 learners often use non-target processing strategies to understand sentences, but that these strategies can be changed through targeted instruction that directs their attention to different linguistic forms or structures. The present study explores the effects of pretraining 'blocking' practice—a novel type of training designed to help learners inhibit the application of a strict word-order based processing strategy—prior to receiving a traditional Structured Input (SI) training focused on OVS word order and accusative case markers in German. The study compares three groups of third-semester German learners who completed three different activities in one training session: (1) SI with blocking practice (+BP), (2) SI preceded by explicit information (+EI), and (3) SI without EI or blocking practice (−EI). The effects of training were measured by sentence-level interpretation and production tasks administered as a pretest, posttest, and four-week delayed posttest. Learner performance was also assessed during training. Results in all assessment measures indicated that EI was most effective, but that blocking practice lent a slight advantage over −EI groups during and after training. These results are discussed in the context of studies on processing instruction and learned attention. [ABSTRACT FROM AUTHOR]