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PPVT standard and Digit Span scale scores (Mean = 10) by age group for both the normal-hearing and hearing-impaired children. Standard deviations are shown in parentheses.
| Age Group (yrs) | NH children | HI children | ||
|---|---|---|---|---|
| PPVT | Digit Span | PPVT | Digit Span | |
| 7–8 | 106 (13.6) | 11.1(2.4) | 101 (10.8) | 9.0 (3.0) |
| 9–10 | 116 (9.0) | 10.5 (3.6) | 103 (19.4) | 12.2 (1.8) |
| 11–12 | 108 (14.8) | 9.8 (3.1) | 103 (17.6) | 9.5 (3.8) |
| 13–14 | 114 (11.6) | 10.6 (3.3) | 107 (15.1) | 8.5 (5.5) |
| Mean | 111 (10.5) | 10.5 (3.0) | 104 (15.2) | 9.8 (3.8) |
