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. 2007 May 4;104(20):8556–8561. doi: 10.1073/pnas.0608961104

Table 3.

Descriptive statistics for the group of 49 children

Mean SD Range
Age (years) 9.8 1.5 7.0–11.9
SES (Hollingshead) 45 14 17–66
Conners' ADHD T score (CPRS-Rs) 50.3 4.7 42–63
Letter-word ID (WJ-III) 106 14.5 70–136
Word attack (WJ-III) 106 11.5 78–128
Passage comprehension (WJ-III) 102 11.2 81–133
Phonological awareness (CTOPP) 100 13.2 73–133
Rapid naming (CTOPP) 99 12.6 79–130
Phonological memory (CTOPP) 99 10.5 79–130
GORT-4 Reading Quotient 105 20.3 64–148
WISC–IV Full-Scale IQ 111 13.5 85–145

All measures except the first three are age-normed standard scores (population mean, 100; SD, 15). SES, Hollingshead index of socioeconomic status (51).