Table 1.
Mean W Scores for Word Reading and Passage Comprehension for Students in the First Through Third Grades
| Measuring occasion and years in ISI reading intervention | n | Word Reading score
|
Passage Comprehension score
|
|||
|---|---|---|---|---|---|---|
| M | SD | M | SD | |||
| First grade: fall | ||||||
| 0 | 100 | 421.71 | 31.413 | 443.86 | 24.852 | |
| 1 | 201 | 420.93 | 27.444 | 444.16 | 22.951 | |
| 2 | 111 | 419.86 | 24.903 | 442.60 | 21.173 | |
| 3 | 37 | 415.73 | 18.458 | 439.05 | 19.452 | |
| Total | 449 | 420.41 | 24.194 | 443.28 | 22.652 | |
| First grade: winter | ||||||
| 0 | 98 | 448.78 | 25.974 | 465.91 | 16.172 | |
| 1 | 208 | 450.12 | 21.966 | 467.62 | 15.363 | |
| 2 | 113 | 453.17 | 18.325 | 468.81 | 12.848 | |
| 3 | 38 | 446.97 | 16.288 | 463.89 | 11.714 | |
| Total | 457 | 450.32 | 21.752 | 467.23 | 14.704 | |
| First grade: spring | ||||||
| 0 | 105 | 459.77 | 25.974 | 472.55 | 15.606 | |
| 1 | 211 | 463.35 | 21.966 | 475.26 | 13.529 | |
| 2 | 114 | 465.21 | 18.325 | 476.95 | 11.171 | |
| 3 | 38 | 462.00 | 16.288 | 477.43 | 9.547 | |
| Total | 468 | 462.89 | 21.752 | 475.28 | 13.248 | |
| Second grade: fall | ||||||
| 0 | 171 | 462.63 | 26.713 | 443.86 | 24.852 | |
| 1 | 280 | 464.27 | 25.420 | 444.16 | 22.951 | |
| 2 | 147 | 470.73 | 20.343 | 442.60 | 21.173 | |
| 3 | 38 | 467.50 | 16.825 | 439.05 | 19.452 | |
| Total | 636 | 465.51 | 24.414 | 443.28 | 22.652 | |
| Second grade: winter | ||||||
| 0 | 135 | 477.10 | 22.788 | 465.91 | 16.172 | |
| 1 | 256 | 476.19 | 22.698 | 467.62 | 15.363 | |
| 2 | 142 | 482.78 | 17.829 | 468.81 | 12.848 | |
| 3 | 38 | 479.68 | 17.037 | 463.89 | 11.714 | |
| Total | 571 | 478.28 | 21.390 | 467.23 | 14.704 | |
| Second grade: spring | ||||||
| 0 | 140 | 483.80 | 21.562 | 472.55 | 15.606 | |
| 1 | 251 | 486.40 | 19.975 | 475.26 | 13.529 | |
| 2 | 139 | 490.46 | 16.663 | 476.95 | 11.171 | |
| 3 | 38 | 487.32 | 14.226 | 477.43 | 9.547 | |
| Total | 568 | 486.81 | 19.398 | 475.28 | 13.248 | |
| Third grade: fall | ||||||
| 0 | 163 | 488.36 | 17.143 | 485.34 | 11.312 | |
| 1 | 282 | 490.08 | 19.817 | 486.82 | 11.580 | |
| 2 | 134 | 492.93 | 17.730 | 489.31 | 9.680 | |
| 3 | 37 | 490.89 | 16.389 | 488.24 | 10.056 | |
| Total | 616 | 490.29 | 18.523 | 487.12 | 11.058 | |
| Third grade: winter | ||||||
| 0 | 136 | 494.90 | 17.777 | 490.65 | 9.566 | |
| 1 | 228 | 496.84 | 19.105 | 490.83 | 10.375 | |
| 2 | 114 | 500.87 | 15.716 | 493.54 | 9.655 | |
| 3 | 30 | 499.90 | 17.050 | 493.00 | 8.980 | |
| Total | 508 | 497.41 | 18.004 | 491.56 | 9.969 | |
| Third grade: spring | ||||||
| 0 | 136 | 500.17 | 17.967 | 93.42 | 10.848 | |
| 1 | 257 | 502.82 | 19.387 | 494.22 | 10.284 | |
| 2 | 119 | 507.39 | 16.012 | 496.05 | 9.105 | |
| 3 | 29 | 505.21 | 17.230 | 493.97 | 8.529 | |
| Total | 541 | 503.29 | 18.351 | 494.43 | 10.082 | |
Note: ISI = Individualizing Student Instruction.