Table 3.
Parameter | Estimate (SE) | |
---|---|---|
Means | ||
Level of Memory | 3.416 | (0.058) |
Slope of Memory | −0.302 | (0.052) |
Level of Depression | 1.825 | (0.078) |
Slope of Depression | 0.573 | (0.068) |
Correlations | ||
Level of Memory w/Slope of Memory | −0.788 | (0.051) |
Level of Depression w/Slope of Depression | −0.472 | (0.078) |
Level of Memory w/Level of Depression | −0.128 | (0.015) |
Level of Memory w/Slope of Depression | 0.859 | (0.032) |
Level of Depression w/Slope of Memory | −0.151 | (0.127)ns |
Slope of Memory w/Slope of Depression | −0.531 | (0.090) |
Proportional changes | ||
Memory → ∆ Memory (βm) | ||
Age window 49–62 years | 0.064 | (0.012) |
Age window 63–76 years | 0.037 | (0.012)ns |
Age window 77–90 years | −0.017 | (0.015)ns |
Depression → ∆ Depression (βd) | ||
Age window 49–62 years | 0.029 | (0.018)ns |
Age window 63–76 years | 0.014 | (0.022)ns |
Age window 77–90 years | −0.062 | (0.017)ns |
Coupling effects | ||
Memory → ∆ Depression (γm) | ||
Age window 49–62 years | −0.210 | (0.016) |
Age window 63–76 years | −0.201 | (0.015) |
Age window 77–90 years | −0.178 | (0.020) |
Depression → ∆ Memory (γd) | ||
Age window 49–62 years | 0.018 | (0.014)ns |
Age window 63–76 years | 0.023 | (0.016)ns |
Age window 77–90 years | 0.051 | (0.014)ns |
Note: Slope = constant change per 2-year interval (i.e., between ages 49–90 years). Proportional changes and coupling effects reflect score at time t as predictive of change in score between time t to t + 2 years.
ns = Nonsignificant at p = .00001.