Table 1.
Selected sample <20th %tile | Unselected sample | |||||||
---|---|---|---|---|---|---|---|---|
Variable | Mean | SD | Range | n | Mean | SD | Range | n |
PIAT–RC | 77.99 | 6.71 | 65–86 | 1,666 | 97.97 | 14.07 | 65–135 | 7,912 |
PIAT–RR | 79.54 | 7.06 | 65–88 | 1,902 | 100.92 | 15.23 | 65–135 | 9,353 |
PIAT–M | 77.71 | 6.73 | 65–86 | 1,885 | 97.82 | 14.00 | 65–135 | 9,376 |
PPVT–R | 56.03 | 13.32 | 20–70 | 924 | 85.89 | 20.75 | 20–160 | 4,401 |
Note. PIAT–RC = Peabody Individual Achievement Test—Reading Comprehension subtest, PIAT–RR = Peabody Individual Achievement Test—Reading Recognition subtest, PIAT–M = Peabody Individual Achievement Test—Mathematics subtest, and PPVT–R = Peabody Picture Vocabulary Test—Revised.