Table 4.

Descriptive statistics for latent profile groups at Time 1 and Time 2 (2-Class Solution Only)

	RD Profile Group					TD Profile Group					Cohen’s d
	n	Mean	SD	Min	Max	n	Mean	SD	Min	Max	TD vs. RD
KTEA3 Letter & Word Recognition
Time 1	150	78.0	11.8	40	114	176	102.6	11.5	84	158	2.11
Time 2	133	78.3	10.5	47	99	182	101.6	10.7	79	160	2.20
KTEA3 Nonsense Word Decoding
Time 1	154	81.4	9.5	58	111	177	100.8	12.3	77	139	1.77
Time 2	135	79.5	8.5	58	98	186	100.9	11.1	75	134	2.16
KTEA3 Word Reading Fluency
Time 1	151	77.64	9.67	40	97	177	97.51	9.06	76	131	2.13
Time 2	135	77.57	9.44	40	94	186	97.78	9.88	78	138	2.09
KTEA3 Decoding Fluency
Time 1	149	87.03	11.59	40	108	177	106.67	10.53	82	135	1.83
Time 2	134	85.52	10.16	47	108	186	106.59	9.97	82	150	1.77
WJ-III Picture Vocabulary
Time 1	140	60.2	15.5	11	93	162	80.8	10.2	55	102	1.57
Time 2	122	63.5	13.4	26	100	159	80.1	10.6	45	102	1.37
WJ-III Memory for Sentences
Time 1	140	55.7	13.4	28	105	163	78.9	12.0	49	116	1.82
Time 2	121	57.5	13.4	25	90	157	80.1	14.3	47	115	1.63
GM Reading Comprehension
Time 1	140	80.5	8.9	65	116	173	92.9	10.9	65	131	1.25
Time 2	135	77.4	9.1	65	110	184	94.5	12.9	65	135	1.53

Note. KTEA3 = Kaufman Test of Educational Achievement, Third Edition; WJ-III = Woodcock Johnson, Third Edition; GM = Gates MacGinitie.