Table 4.

Means and standard deviation for MLU in words and morphemes per group

			MLUW			MLUM
Group	Age Range	N	Mean	Std Dev	Cohen’s d Effect Size	Mean	Std Dev	Cohen’s d Effect Size
Affected	2;6 - 2;11	6	2.37	0.32	0.93	2.59	0.39	0.90
Affected	3;0 - 3;5	15	2.84	0.38	0.97	3.07	0.48	1.07
Affected	3;6 - 3;11	24	3.10	0.75	1.04	3.36	0.80	1.09
Affected	4;0 - 4;5	54	3.31	0.70	1.22	3.64	0.80	1.22
Affected	4;6 - 4;11	72	3.60	0.62	0.95	3.95	0.70	1.01
Affected	5;0 - 5;5	84	3.72	0.61	1.05	4.09	0.70	1.10
Affected	5;6 - 5;11	97	3.95	0.60	0.85	4.34	0.67	0.89
Affected	6;0 - 6;5	108	3.98	0.70	0.90	4.38	0.75	0.92
Affected	6;6 - 6;11	94	4.18	0.71	0.79	4.63	0.79	0.84
Affected	7;0 - 7;5	103	4.15	0.62	0.69	4.56	0.69	0.72
Affected	7;6 - 7;11	100	4.33	0.88	0.57	4.77	0.96	0.60
Affected	8;0 - 8;5	94	4.36	0.75	0.86	4.80	0.83	0.89
Affected	8;6 - 8;11	61	4.49	0.86	0.72	4.97	0.93	0.68
Unaffected	2;6 - 2;11	17	2.91	0.58		3.23	0.71
Unaffected	3;0 - 3;5	29	3.43	0.61		3.81	0.69
Unaffected	3;6 - 3;11	38	3.71	0.58		4.09	0.67
Unaffected	4;0 - 4;5	49	4.10	0.65		4.57	0.76
Unaffected	4;6 - 4;11	74	4.28	0.72		4.75	0.79
Unaffected	5;0 - 5;5	78	4.38	0.63		4.88	0.72
Unaffected	5;6 - 5;11	77	4.47	0.61		4.96	0.70
Unaffected	6;0 - 6;5	70	4.57	0.66		5.07	0.75
Unaffected	6;6 - 6;11	63	4.70	0.66		5.22	0.71
Unaffected	7;0 - 7;5	51	4.72	0.83		5.22	0.91
Unaffected	7;6 - 7;11	47	4.92	1.03		5.45	1.13
Unaffected	8;0 - 8;5	41	5.08	0.84		5.67	0.97
Unaffected	8;6 – 8;11	18	4.99	0.71		5.51	0.79