Table 3.

Parent ratings on a measure of social skills

		NS	NF1	Unaffected siblings
		(n = 39)	(n = 39)	(n = 32)
SSIS—Social Skills	Mean	87.62	89.00	100.81
	SD	16.01	14.44	13.31
	Range	54–117	57–116	77–125
SSIS—Problem Behaviors	Mean	115.28	114.28	101.19
	SD	16.47	14.15	13.05
	Range	85–154	92–148	82–128

SSIS Social Skills Improvement System