Table 1.

Descriptive statistics for behavioral assessments in preschool and school-age individuals with Noonan syndrome (NS).

Age	Measure	M	SD	Range
Preschool (4–5 years; n = 14)	Language
	CELF–P2 core language score	90.7	22.3	45–112
	CELF–P2 Receptive Language Index	89.6	21.7	45–109
	CELF–P2 Expressive Language Index	89.0	24.4	45–119
	Intellectual functioning
	DAS Full Scale	88.1	22.1	44–123
	DAS Verbal Composite	90.0	22.2	44–123
	DAS Nonverbal Composite	87.6	23.3	44–122
	Articulation
	GFTA–2 standard score	104.7	16.5	56–120
School-age (6–18 years; n = 52)	Language
	CELF–4 core language score	88.4	19.9	40–120
	CELF–4 Receptive Language Index	87.4	17.7	45–116
	CELF–4 Expressive Language Index	89.5	19.5	45–124
	Intellectual functioning
	DAS Full Scale	85.4	17.4	44–123
	DAS Verbal IQ	89.3	17.9	51–128
	DAS Nonverbal IQ	85.0	16.1	48–116
	Articulation
	GFTA–2 standard score	97.5	13.5	40–112
	Academic skills
	DAS Reading	89.8	16.7	55–123
	DAS Spelling	86.8	15.6	55–117
	Phonological memory
	CTOPP Phonological Memory Index	83.7	12.9	49–112
	Manual motor skills
	Purdue Pegboard Test	73.7	22.1	10–110

Note. Data are standardized scores (normative M = 100, SD = 15). CELF–P2 = Clinical Evaluation of Language Fundamentals—Preschool, Second Edition; DAS = Differential Ability Scales; GFTA–2 = Goldman Fristoe Test of Articulation—Second Edition; CELF–4 = Clinical Evaluation of Language Fundamentals, Fourth Edition; CTOPP = Comprehensive Test of Phonological Processing.