Table 3.

Intellectual performance of HT1 preschool and school ages, assessed with WPPSI and WISC-R or WISC III.

Age at testing
Test	4 to 6 years of age	6 to 10 years of age
	(N = 9)	(N = 9)
VIQ	89 ± 15	81 ± 19.6
PIQ	90 ± 15	80 ± 15
FSIQ	88 ± 16	79 ± 18
FSIQ 70–79	2 (22%)	4 (44%)
FSIQ < 70	1 (11%)	2 (22%)

VIQ: verbal intellectual quotient, PIQ: performance intellectual quotient, FSIQ: full-scale intellectual quotient (mean ± SD).