Table 1.

Participant characteristics and test scores.

Measure	M	SD
Age in months	92.82	4.97
Mother's education in years	15.39	1.66
GFTA-2 Articulation Accuracy percentile	50.89	8.54
K-ABC2 Nonverbal Index standard score	117.60	15.53
TOWRE-2 Word/Nonword standard score	109.45	8.40
CELF-4 Core Language standard score	108.75	9.58
EVT-2 standard score	112.39	10.95
WRMT III-PC standard score	108.23	9.85
ADHD Rating Scale-IV raw score	10.19	8.77

Note. GFTA-2 = Goldman-Fristoe Test of Articulation–Second Edition (Goldman & Fristoe, 2000); K-ABC2 = Kaufman Assessment Battery for Children, Second Edition (Kaufman & Kaufman, 2004); TOWRE-2 = Test of Word Reading Efficiency–Second Edition (Torgesen et al., 2012); CELF-4 = Clinical Evaluation of Language Fundamentals–Fourth Edition (Semel et al., 2003); EVT-2 = Expressive Vocabulary Test–Second Edition (Williams, 2007); WRMT III-PC = Woodcock Reading Mastery Test–Third Edition Passage Comprehension (Woodcock, 2011); ADHD Rating Scale-IV = ADHD Rating Scale–Fourth Edition: Home Version (DuPaul et al., 1998).