표 2. | Table 2. 기술통계 결과 | Results of descriptive statistics

	Pure SSD	SSD+E	SSD+RE
PMLU (score)	7.83 (0.72)	7.76 (0.44)	7.23 (1.22)
PWP (proportion)	0.89 (0.13)	0.9 (0.05)	0.84 (0.14)
PWC (proportion)	0.59 (0.28)	0.52 (0.23)	0.44 (0.28)
AMR (SPS)	3.05 (1.37)	2.38 (0.87)	3.26 (1.47)
SMR (SPS)	1.39 (0.65)	0.98 (0.78)	1.11 (0.32)
MPT (s)	4.65 (2.67)	3.92 (1.84)	5.5 (2.75)

Values are presented as mean (SD).
Pure SSD, pure speech sound disorders; SSD+E, speech sound disorders with expressive language disorders; SSD+RE, speech sound disorders with receptive and expressive language disorders; PMLU, phonological mean length of utterance; PWP, proximity whole word proximity; PWC, proportion of whole-word correctness; AMR, alternate motion rate; SMR, sequential motion rate; MPT, maximum phonation time; SPS, syllables per second; s, second.