Appendix.
Parameter estimates and standard errors resulting from fitting full group differences in complexity of work with people (model 6) to the cognitive components. Model parameters are anchored for the low complexity of work with people group (lo) and then the change (Δ) in parameter for the high complexity of work with people group (hi) is indicated. For example, the mean intercept on the verbal component for the low complexity group is 53.71 and the mean intercept for the high complexity group is 55.30 (53.71 + 1.59).
| Parameter | Verbal | Spatial | Memory | Speed |
|---|---|---|---|---|
| Intercept (lo) | 53.71 (1.2) | 51.36 (1.1) | 54.51 (1.2) | 52.91 (1.1) |
| Δ Intercept (hi) | 1.59 (1.8) | 3.48 (1.6) | 1.25 (1.7) | 2.56 (1.3) |
| Education (lo) | 2.96 (1.7) | −1.62 (1.5) | 2.11 (1.7) | 0.80 (1.5) |
| Δ Education (hi) | 3.09 (2.1) | −1.83 (1.8) | 0.72 (2.0) | 2.42 (1.8) |
| Practice (lo) | 1.72 (0.9) | 2.14 (0.8) | 0.22 (0.9) | 0.92 (0.8) |
| Δ Practice (hi) | −0.94 (1.3) | −0.86 (0.9) | 1.95 (1.3) | 1.02 (1.0) |
| Slope 1 (lo) | −0.13 (0.2) | −0.35 (0.1) | 0.04 (0.2) | −0.27 (0.2) |
| Δ Slope 1 (hi) | 0.20 (0.2) | 0.00 (0.2) | −0.25 (0.2) | −0.25 (0.2) |
| Slope 2 (lo) | −0.10 (0.1) | −0.29 (0.1) | −0.24 (0.1) | −0.60 (0.1) |
| Δ Slope 2 (hi) | −0.10 (0.1) | −0.22 (0.1) | −0.13 (0.1) | −0.09 (0.1) |
| Practice × Education (lo) | 1.66 (1.2) | 1.65 (1.1) | −0.51 (1.2) | 0.05 (1.1) |
| Δ Practice × Education (hi) | −2.11 (1.5) | −1.83 (1.3) | 0.91 (1.5) | −0.75 (1.3) |
| Slope 1 × Education (lo) | −0.32 (0.2) | 0.00 (0.2) | −0.15 (0.2) | 0.10 (0.2) |
| Δ Slope 1 × Education (lo) | 0.35 (0.2) | 0.14 (0.2) | 0.19 (0.2) | 0.07 (0.2) |
| Slope 2 × Education (hi) | 0.05 (0.1) | 0.13 (0.1) | 0.15 (0.1) | −0.03 (0.1) |
| Δ Slope 2 × Education (lo) | −0.11 (0.1) | −0.22 (0.1) | −0.08 (0.1) | −0.06 (0.1) |