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. Author manuscript; available in PMC: 2014 Nov 1.
Published in final edited form as: Am J Speech Lang Pathol. 2013 Jun 28;22(4):615–626. doi: 10.1044/1058-0360(2013/12-0109)

Table 4.

Characteristics by Group for Participants who Completed the Four Grammatical Constructions of Interest

DS FXS TD
(n = 22) (n = 23) (n = 22)

Characteristic Mean SD Mean SD Mean SD
Chronological age 13.0 1.7 12.8 1.8 4.7 0.9
Nonverbal IQ 43.4 7.5 43.3 6.9 108.6 11.5
Leiter-R growth score 464.4 5.9 464.1 5.7 463.1 7.6
Leiter-R age-equivalent 5.1 0.6 5.1 0.6 5.0 0.8