Table 1.
Descriptive statistics for the WJ III.
| Low | Average | High | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | M (SD) | Skew | Kurt | N | M (SD) | Skew | Kurt | N | M (SD) | Skew | Kurt | |
| WJ III Elementary | ||||||||||||
| Gc | 302 | 83.03 (11.70) | −0.64 | 0.48 | 658 | 101.07 (9.03) | 0.07 | −0.04 | 362 | 114.07 (8.57) | −0.11 | 0.29 |
| Gf | 369 | 83.67 (13.21) | −0.64 | 0.18 | 832 | 100.11 (10.62) | −0.35 | 0.67 | 454 | 114.30 (10.84) | 0.24 | 0.33 |
| Gsm | 400 | 85.74 (13.49) | −0.13 | 0.87 | 883 | 100.75 (12.61) | 0.01 | 0.28 | 463 | 111.63 (13.67) | 0.50 | 1.33 |
| Gs | 343 | 90.62 (13.87) | −0.28 | 0.46 | 701 | 100.98 (12.30) | −0.14 | 0.10 | 364 | 107.30 (14.01) | 0.21 | 0.12 |
| Ga | 303 | 89.86 (13.98) | −0.27 | 0.18 | 614 | 101.57 (13.07) | −0.01 | 0.18 | 337 | 111.96 (13.27) | 0.08 | 0.06 |
| Glr | 306 | 87.67 (10.61) | −0.28 | 0.47 | 659 | 101.30 (10.29) | 0.30 | 0.63 | 353 | 112.93 (10.70) | 0.33 | 0.10 |
| Gv | 277 | 93.28 (14.18) | −0.17 | −0.34 | 656 | 99.63 (13.74) | −0.38 | 0.71 | 378 | 107.27 (14.13) | −0.08 | 1.03 |
| BRS | 409 | 88.11 (14.18) | −0.28 | 0.45 | 956 | 101.70 (11.45) | 0.04 | −0.08 | 460 | 112.83 (10.28) | −0.22 | −0.07 |
| RC | 334 | 85.54 (14.26) | −0.69 | 1.37 | 795 | 101.82 (11.18) | −0.22 | 0.59 | 405 | 114.40 (11.19) | 0.12 | 1.05 |
| GIA | 249 | 81.57 (8.71) | −0.80 | 0.99 | 614 | 99.38 (6.98) | 0.07 | −0.14 | 363 | 117.20 (9.53) | 0.87 | 1.51 |
| WJ III Secondary | ||||||||||||
| Gc | 326 | 83.26 (11.24) | −0.65 | 0.88 | 686 | 100.98 (9.13) | −0.40 | 2.14 | 391 | 115.65 (9.67) | 0.48 | 0.42 |
| Gf | 331 | 83.15 (11.79) | −0.33 | 0.27 | 704 | 100.24 (10.27) | −0.17 | 0.27 | 386 | 115.28 (9.02) | 0.01 | −0.05 |
| Gsm | 426 | 87.62 (13.03) | −0.15 | 0.12 | 866 | 101.53 (11.52) | −0.02 | 0.37 | 470 | 112.64 (12.03) | 0.11 | 0.15 |
| Gs | 419 | 90.64 (14.92) | −0.12 | 0.87 | 849 | 100.12 (13.68) | −0.08 | 0.30 | 467 | 108.05 (14.41) | 0.14 | −0.05 |
| Ga | 271 | 86.48 (12.37) | 0.04 | 0.38 | 505 | 99.47 (12.20) | 0.17 | 0.55 | 285 | 109.27 (14.21) | 0.55 | 0.43 |
| Glr | 301 | 85.57 (11.96) | −0.17 | 0.23 | 625 | 98.91 (11.01) | 0.47 | 1.31 | 347 | 112.98 (11.79) | 0.62 | 0.30 |
| Gv | 310 | 90.10 (13.00) | −0.15 | −0.22 | 623 | 100.01 (12.19) | −0.21 | 0.40 | 358 | 109.39 (13.45) | −0.02 | −0.02 |
| BRS | 457 | 86.57 (14.49) | −0.40 | 0.67 | 1001 | 101.53 (11.55) | −0.18 | 0.28 | 527 | 112.02 (11.92) | 0.31 | 0.05 |
| RC | 312 | 84.24 (14.26) | −0.70 | 1.05 | 776 | 100.93 (10.78) | 0.03 | 0.97 | 403 | 113.59 (11.74) | 0.48 | 1.22 |
| GIA | 292 | 82.70 (9.52) | −1.13 | 1.50 | 604 | 101.79 (6.94) | 0.07 | −0.51 | 341 | 120.82 (9.08) | 0.80 | 0.60 |
Note. Gc = Comprehension–Knowledge, Gf = Fluid Reasoning, Gsm = Short-Term Memory, Gs = Processing Speed, Ga = Auditory Processing, Glr = Long-Term Retrieval, Gv = Visual Processing, BRS = Basic Reading Skills, RC = Reading Comprehension, GIA = General Intellectual Ability.