Table 4.

Mean percent occurrence of phonological patterns by age and speaker group.

Language group	n	Weak syllable deletion	Cluster deletion	Cluster reduction	Initial consonant deletion	Final consonant deletion	Gliding	Stopping	Backing	Fronting	Final consonant devoicing
Typical monolingual 3-year-olds	2	0	0.00	18.06	0.00	9.39	29.43	11.15	7.49	3.64	37.50
Monolingual 3-year-olds with disorders	2	0	0.00	33.33	0.00	6.53	15.45	12.35	6.97	4.94	26.98
Typical bilingual 3-year-olds	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Bilingual 3-year-olds with disorders	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Typical monolingual 4-year-olds	4	0	0.00	3.85	0.00	3.27	2.58	8.23	3.57	1.73	32.29
Monolingual 4-year-olds with disorders	2	0	4.06	54.79	0.00	11.91	10.66	34.12	7.66	7.89	13.39
Typical bilingual 4-year-olds a	1	0	0.00	3.77	2.33	10.81	53.57	1.20	8.42	1.49	70.00
Bilingual 4-year-olds with disorders	5	0	3.36	12.78	2.12	7.21	14.80	15.26	6.34	6.14	29.40
Typical monolingual 5-year-olds	9	0	0.00	6.07	0.00	2.69	0.71	6.53	2.27	1.88	8.82
Monolingual 5-year-olds with disorders a	1	0	0.00	9.62	0.00	2.70	34.48	11.11	8.82	4.90	0.00
Typical bilingual 5-year-olds	12	0	0.48	9.28	0.54	3.14	1.70	8.77	2.79	2.37	19.69
Bilingual 5-year-olds with disorders	2	0	1.17	19.87	0.00	5.63	10.34	17.83	6.35	5.02	33.33
Typical monolingual 6-year-olds a	1	0	0.00	0.00	0.00	5.41	0.00	18.31	4.55	2.53	14.29
Monolingual 6-year-olds with disorders a	1	0	0.00	3.92	0.00	2.70	27.59	5.00	6.37	6.86	0.00
Typical bilingual 6-year-olds	2	0	0.00	7.27	0.00	1.31	1.56	9.37	3.23	1.48	14.58
Bilingual 6-year-olds with disorders	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A

^a Individual data only due to one subject in this age group.