Table 2. Correlations of the working memory factor to ability factors of the Berlin Intelligence Structure Test.
| Presentation Time Condition | |||
|---|---|---|---|
| 1 | 2 | 3 | |
| BIS-PS | |||
| Pretest | .703 | .639 | .609 |
| Posttest | .500 | .433 | .394 |
| χ2 Test of Difference | 1.569 | 3.188 | 3.175 |
| BIS-Reasoning | |||
| Pretest | .819 | .957 | .868 |
| Posttest | .679 | .505 | .500 |
| χ2 Test of Difference | 0.938 | 20.699 | 13.691 |
| BIS-EM | |||
| Pretest | .505 | .680 | .615 |
| Posttest | .683 | .515 | .624 |
| χ2 Test of Difference | 1.186 | 2.337 | 0.007 |
Notes.
Differences between pretest and posttest correlations were tested with likelihood-ratio tests, comparing the a model in which the correlation were freely estimated with a model in which it was constrained to be equal. The resulting χ2 tests all have df = 1 and a critical value (with α = .05) of 3.841; significant differences (pretest vs. posttest) are shown in bold face.
- BIS
- Berlin Intelligence Structure Test
- PS
- Perceptual Speed
- EM
- Episodic Memory