Table 1.

Participant Characteristics

Participant	Age (months)	Gender	PPVT-III	EVT	TELD-3	GFTA-2	TSO	% SLD	SSI-3
1	48	M	101	97	90	90	24	3.2	20
2	51	M	104	115	123	100	15	3.5	23
3	58	F	119	120	129	92	20	3.9	20
4	51	F	97	107	109	111	27	7.4	29
5	51	M	123	107	124	102	9	10.9	23
6	50	M	94	91	91	109	24	3.8	28
7	42	F	116	119	119	94	7	4.9	20
8	43	M	126	111	134	103	6	15.5	31
9	43	F	93	113	101	124	20	5.9	26
10	56	M	109	102	96	93	12	4.8	24
11	51	M	108	103	99	97	9	3.0	18
12	57	M	116	133	113	118	33	3.1	15
13	36	M	93	98	102	117	3	7.4	16
14	41	M	96	112	122	99	2	4.8	20
15	40	M	95	n/a*	n/a*	104	21	7.6	23
16	42	M	105	122	140	120	7	7.5	21
17	49	F	121	125	131	95	29	4.5	16
18	52	M	119	124	124	113	16	11.0	29
19	68	M	111	114	117	86	32	8.0	20
MEAN (SD)	48.89 (7.69)	n/a	107.68 (11.18)	111.83 (11.05)	114.67 (15.25)	103.37 (11.42)	16.63 (9.87)	6.35 (3.31)	22.21 (4.69)

Note. PPVT-III = Peabody Picture Vocabulary Test-III (standard score); EVT = Expressive Vocabulary Test (standard score); TELD-3 = Test of Early Language Development-3 (standard score); GFTA-2 = Goldman-Fristoe Test of Articulation-2 (standard score); TSO = parent-reported time since initial onset of stuttering (months); %SLD = mean frequency of stuttering-like disfluencies (percent) per 100 words; SSI-3 = Stuttering Severity Instrument-3 (total score); = test scores could not be obtained, because the participant refused to cooperate with further testing.