Table 1.
Mean and SD for measures of language and memory skills across age groups
| Measures | Age 3
|
Age 4
|
Age 5
|
Age 6
|
||||
|---|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Mean | SD | Mean | SD | |
| MST LSS | 4.10 | 1.59 | 5.00 | 1.83 | 6.20 | 1.93 | 6.80 | 2.35 |
| PPVT R | 84.10 | 14.48 | 101.80 | 15.09 | 114.90 | 13.72 | 132.40 | 20.03 |
| PPVT S | 124.50 | 12.86 | 122.40 | 12.38 | 120.00 | 10.50 | 123.10 | 13.85 |
| NEPSY MD R | 42.10 | 11.90 | 70.40 | 20.55 | 80.60 | 26.98 | 89.50 | 22.67 |
| NEPSY MD S | 10.70 | 2.41 | 13.60 | 3.95 | 13.50 | 4.79 | 12.30 | 2.71 |
| NEPSY NM R | 5.30 | 4.55 | 6.00 | 2.94 | 14.10 | 7.75 | 19.10 | 7.06 |
| NEPSY NM S | 9.70 | 3.43 | 7.20 | 1.99 | 8.90 | 3.25 | 9.50 | 2.95 |
Note. MST LSS = Missing Scan Task longest set size correct scores; PPVT R = Peabody Picture Vocabulary Test raw scores; PPVT S = Peabody Picture Vocabulary Test standard scores; NEPSY MD R = NEPSY memory for designs total raw scores; NEPSY MD S = NEPSY memory for designs total scaled scores; NEPSY NM R = NEPSY narrative memory raw scores; NEPSY NM S = NEPSY narrative memory scaled scores.