A closer look at the different rhythm metrics in L2 English ： Inter-and intra-speaker variability and individual difference

This report aims to validate the rhythm indices using data from second language learners. Previously, rhythm indices had been well adopted to measure rhythm in both L1 and L2 studies. However, the validity of the indices has still been debated. In this study, 10 L1-Japanese/L2-English read-aloud data were investigated with a focus on inter- and intra-participant differences and proficiency differences. The results of linear mixed-effect models provided the effect of sentence type and learners’ target language proficiency on L2 rhythm. Several points were stated for future research.