Table 2.

Comparison of industry-provided normative data and urban sample on composite scores.

Age	Test	Urban	Published Norm	T	p	95% Confident Interval
13–15 years old (n = 300)	Verbal	81.3 (9.8)	85	−6.7	<0.001	80.2–82.4
	Visual	67.5 (13.1)	73	−6.9	<0.001	65.9–69.1
	Visual Motor Speed	31.5 (7.4)	38	−15.9	<0.001	30.6–32.3
	Reaction Time	0.65 (0.1)	0.57	11.8	<0.001	0.63–0.66
16–18 years old (n = 331)	Verbal	81.9 (9.9)	84	−4.1	<0.001	80.9–82.9
	Visual Motor Speed	34.3 (7.3)	36	−5.7	<0.001	33.4–35.1
	Reaction Time	0.6 (0.09)	0.53	6.9	<0.001	0.59–0.62