Table 1.
Means, SD, correlations, and internal consistencies of the constructs.
| Construct | M | SD | McDonald’s ω | 1 | 2 | 3 | 4 | 5 | N |
|---|---|---|---|---|---|---|---|---|---|
| (1) Deductive reasoning (FR)(1) | 0.49 | 0.23 | 0.64 | – | 1978 | ||||
| (2) Scientific reasoning (FR) | 0.32 | 0.28 | 0.95 | 0.40∗∗ | – | 1948 | |||
| (3) Working memory | 0.57 | 0.25 | 0.83 | 0.28∗∗ | 0.32∗∗ | – | 1949 | ||
| (4) CPS Knowledge Acquisition | 0.36 | 0.27 | 0.95 | 0.29∗∗ | 0.32∗∗ | 0.26∗∗ | – | 1244 | |
| (5) CPS Knowledge Application | 0.38 | 0.28 | 0.90 | 0.28∗∗ | 0.33∗∗ | 0.31∗∗ | 0.56∗∗ | – | 1106 |
Means, SDs, and correlations were computed in SPSS based on manifest scores. Manifest scores were scaled to range from 0 to 1. Internal consistencies were calculated using McDonald’s (1999) ω coefficient with ω = (Σλi)2/([Σλi]2 + Σδi), where λi are the factor loadings and δii the residual variances. FR, fluid reasoning. (1)For deductive reasoning, one item had to be excluded due to a non-significant loading on the respective factor. ∗∗p < 0.001.