Table 5.
Factor Loadings for All Measures for the SB SAS Factor (Waves 1, 2, and 3 Stanford-Binet Intelligence Scale), Reading Factor (RAN or Decoding), and the Math Factor (WJ-III Calculation, Fluency, Applied Problems, Quantitative Concepts, or WRAT)
| Variable | SB SAS factor | RAN factor | Reading (Decoding) factor | Math (WJ-III Calculation) factor | Math (WJ-III Fluency) factor | Math (WJ-III Applied Problems) factor | Math (WJ-III Quantitative Concepts) factor | Math (WRAT) factor |
|---|---|---|---|---|---|---|---|---|
| SB SAS | ||||||||
| Wave 1 | .76 | |||||||
| Wave 2 | .96 | |||||||
| Wave 3 | .96 | |||||||
| RAN | ||||||||
| Wave 1 | .66 | |||||||
| Wave 2 | .84 | |||||||
| Wave 3 | .72 | |||||||
| Wave 5 | .67 | |||||||
| Decodinga | ||||||||
| Wave 1 | .75 | |||||||
| Wave 2 | .87 | |||||||
| Wave 3 | .82 | |||||||
| Wave 5 | .84 | |||||||
| WJ-III Calculation | ||||||||
| Wave 4 | .72 | |||||||
| Wave 5 | .79 | |||||||
| WJ-III Fluency | ||||||||
| Wave 4 | .84 | |||||||
| Wave 5 | .92 | |||||||
| WJ-III Applied Problems | ||||||||
| Wave 4 | .78 | |||||||
| Wave 5 | .82 | |||||||
| WJ-III Quantitative Concepts | ||||||||
| Wave 4 | .73 | |||||||
| Wave 5 | .78 | |||||||
| WRAT | ||||||||
| Wave 4 | .69 | |||||||
| Wave 5 | .74 | |||||||
Note. SB SAS = Stanford-Binet Intelligence Scale; RAN = Rapid Automatized Naming; WJ-III = Woodcock-Johnson III Tests of Achievement; WRAT = Wide Range Achievement Test—3.
a
Mean score of Word Identification and Passage Comprehension subtests of the Woodcock Reading Mastery Tests—Revised.