. Author manuscript; available in PMC: 2008 Oct 29.

Published in final edited form as: Clin Neuropsychol. 2007 Aug 18;22(4):585–602. doi: 10.1080/13854040701425940

Table 4.

Comparison of proportion of clinically significant BRIEF index T-scores in three age groups

	MMH	Control	χ²	p
Age 10−12 years	(n = 10)	(n = 13)
Metacognitive Index	40.0	7.7	3.47	.063
Behavioral Regulation Index	10.0	15.4	0.14	.704
Age 13−15 years	(n = 10)	(n = 13)
Metacognitive Index	60.0	7.7	7.30	.007
Behavioral Regulation Index	30.0	15.4	0.71	.400
Age 16−18 years	(n = 15)	(n = 9)
Metacognitive Index	46.7	0	5.93	.015
Behavioral Regulation Index	20.0	0	2.06	.151

MMH = myelomeningocele/hydrocephalus. Scores are presented as percentage of sample with T-scores ≥ 65.