More L2 Korean Phonological Error Rates

Following up on my previous post on L2 Korean pronunciation over time, I have finished coding and counting for another task (this time, a more spontaneous picture description task) and have some fresh plots to share:

Lots of individual variation in direction and magnitude of changes. The treatment group, at least for the read-aloud task, is a bit less "noisy" and seems to show a stronger trend towards reduction in error rates.

Some higher-level descriptive statistics below. Lots to talk about considering the plot above and table below! L1 Chinese seem to have noticeably higher syllable error rates, but groups showed improvement overall. Back to writing this up...

		Segmental Error Rate			Syllable Error Rate			Combined Error Rate
		Pretest	Posttest		Pretest	Posttest		Pretest	Posttest
	n	M (SD)	M (SD)		M (SD)	M (SD)		M (SD)	M (SD)
Chinese	24	0.12 (0.07)	0.10 (0.04)		0.09 (0.05)	0.07 (0.04)		0.21 (0.11)	0.17 (0.07)
English	47	0.10 (0.06)	0.08 (0.05)		0.05 (0.03)	0.04 (0.03)		0.15 (0.08)	0.12 (0.06)
1st Year	47	0.13 (0.07)	0.09 (0.05)		0.08 (0.04)	0.06 (0.04)		0.21 (0.10)	0.15 (0.07)
2nd Year	24	0.06 (0.03)	0.07 (0.04)		0.04 (0.03)	0.04 (0.02)		0.10 (0.04)	0.10 (0.06)
Treatment	38	0.11 (0.06)	0.08 (0.04)		0.06 (0.04)	0.05 (0.03)		0.17 (0.09)	0.13 (0.07)
Control	33	0.11 (0.08)	0.08 (0.05)		0.06 (0.04)	0.06 (0.04)		0.17 (0.11)	0.14 (0.08)
Picture	36	0.09 (0.06)	0.08 (0.04)		0.07 (0.04)	0.06 (0.04)		0.16 (0.07)	0.14 (0.06)
Read-Aloud	35	0.12 (0.07)	0.08 (0.05)		0.06 (0.04)	0.04 (0.03)		0.18 (0.11)	0.13 (0.08)
All	71	0.11 (0.07)	0.08 (0.05)		0.06 (0.04)	0.05 (0.04)		0.17 (0.10)	0.14 (0.07)