First-Order Pearson Correlations Among Predictor Variables
| Cognitive
|
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|---|---|---|---|---|---|---|---|---|---|
| Linguistic
|
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| Variable | Receptive vocabulary |
Expressive vocabulary |
Fluid reasoning |
Fundamental visualization |
Nonverbal intelligence |
Paired- associates learning |
Short- term memory |
Working memory |
Executive function |
| Chronological age | .542* | −.256 | .449* | .540* | .834*** | .315 | .274 | .261 | −.075 |
| Executive function | .491* | −.079 | −.213 | .069 | .222 | .408 | .350 | −.032 | |
| Working memory | .101 | −.160 | −.110 | .199 | −.006 | .134 | .042 | ||
| Short-term memory | .574** | .072 | .183 | −.060 | .042 | .154 | |||
| Paired-associates learning | .147 | −.268 | −.026 | .095 | .216 | ||||
| Nonverbal intelligence | .416 | −.042 | .489* | .851*** | |||||
| Fundamental visualization | .266 | .042 | .249 | ||||||
| Fluid reasoning | .401 | .146 | |||||||
| Expressive vocabulary | .079 | ||||||||
Note. Receptive vocabulary was measured using the ROWPVT–4. Expressive vocabulary was measured using the MCDI. Working memory refers to the spin-the-pots task. Short-term memory refers to the forward memory task. Fundamental visualization measures visual abilities at a basic level. Fluid reasoning refers to the ability to solve novel problems.
*
p < .05.
**
p < .01.
***
p < .001.