Table 5. Means (standard deviation) of rhythm metrics for ten native speakers, twenty Chinese advanced learners and twenty beginners

	American	Chinese (A)	Chinese (B)
%V	44.4 (6.2)	47.4 (6.1)	52.4 (8.6)
VarcoV	59.2 (5.6)	55.5 (6.9)	49.7 (8.7)
nPVI-V	65.5 (5.9)	60.3 (8.3)	55.1 (6.8)
VarcoC	54.5 (4.4)	53.6 (7.5)	49.9 (5.8)
nPVI-C	65.9 (6.1)	65.3 (7.9)	57.8 (7.5)

A, advanced learners; B, beginners.