Table 2. The mean and the standard deviation of 11 rhythm metrics for the two speaker group

Rhythm metrics Korean learners (BKL) Native speakers (NS)
%V 48.25 (5.63) 46.71 (4.22)
ΔC 67.77 (20.04) 54.88 (14.35)
ΔV 75.72 (30.61) 61.69 (21.15)
VarcoC 48.30 (9.31) 49.52 (10.84)
VarcoV 52.29 (13.90) 56.85 (10.68)
rPVI-C 75.06 (25.20) 57.87 (15.94)
nPVI-C 53.76 (13.51) 53.47 (12.45)
rPVI-V 85.94 (34.04) 72.90 (27.63)
nPVI-V 56.00 (12.75) 66.00 (15.87)
S-rate 3.64 (0.65) 4.79 (0.60)
NumP 5.62 (2.81) 1.62 (1.69)
PVI, Pairwise Variability Index.