Table 4.
Models | Verbal memory (prose) | Knowledge (information task) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Est. (κ2) | SE | P | 95 % CI | Est. (κ2) | SE | P | 95 % CI | |||
Lower | Upper | Lower | Upper | |||||||
Within-person effect | ||||||||||
Age → Cog | −0.06 | 0.04 | .08 | −0.13 | 0.007 | −0.32 | 0.06 | <.0001 | −0.20 | −0.15 |
Age → physical | −0.03 | 0.007 | <.0001 | −0.05 | −0.02 | −0.03 | 0.007 | <.0001 | −0.05 | −0.02 |
Age → social | −0.53 | 0.009 | <.0001 | −0.07 | −0.04 | −0.05 | 0.009 | <.0001 | −0.07 | −0.04 |
Age → Dep | 0.10 | 0.05 | .046 | 0.002 | 0.20 | 0.10 | 0.05 | .046 | 0.002 | 0.20 |
Age → CogAct | −0.18 | 0.01 | <.0001 | −0.20 | −0.15 | −0.18 | 0.01 | <.0001 | −0.20 | −0.15 |
Physical → social (a) | 0.08 | 0.04 | .07 | −0.007 | 0.16 | 0.08 | 0.04 | .07 | −0.007 | 0.16 |
Physical → Dep (a) | −0.38 | 0.28 | .18 | −2.78 | 0.74 | −0.38 | 0.28 | .18 | −2.78 | 0.74 |
Physical → CogAct (a) | 0.22 | 0.07 | .001 | 0.10 | 0.35 | 0.22 | 0.07 | .001 | 0.10 | 0.35 |
Physica → Cog (c′) | 0.11 | 0.18 | .52 | −0.23 | 0.46 | 0.64 | 0.24 | .006 | 0.18 | 1.11 |
Social → Cog (b) | 0.30 | 0.12 | .01 | 0.07 | 0.54 | 0.75 | 0.19 | <.0001 | 0.26 | 1.13 |
Dep → Cog (b) | −0.004 | 0.02 | .88 | −0.05 | 0.03 | −0.03 | 0.04 | .42 | −0.11 | 0.05 |
CogAct → Cog (b) | 0.14 | 0.08 | .08 | −0.02 | 0.30 | 0.41 | 0.15 | .007 | 0.11 | 0.70 |
Indirect Social | 0.02 (.006) | 0.02 | .12 | −0.003 | 0.06 | 0.06 (.007) | 0.04 | .10 | −0.004 | 0.14 |
Indirect Dep | 0.001 (.0007) | 0.009 | .88 | −0.02 | 0.03 | 0.01 (.001) | 0.02 | .47 | −0.02 | 0.06 |
Indirect CogAct | 0.01 (.007) | 0.02 | .46 | −0.004 | 0.08 | 0.09 (.01) | 0.04 | .03 | 0.02 | 0.19 |
Between-person effect | ||||||||||
Intercept age | 85.43 | 0.26 | <.0001 | 84.91 | 85.95 | 85.43 | 0.26 | <.0001 | 84.91 | 85.94 |
Intercept Cog | 7.74 | 7.62 | .31 | −7.20 | 22.67 | 63.17 | 20.79 | .002 | 22.43 | 103.91 |
Intercept CogAct | 1.47 | 2.60 | .57 | −3.62 | 6.56 | 1.64 | 2.60 | .53 | −3.56 | 6.74 |
Intercept physical | 0.99 | 1.06 | .35 | −1.10 | 3.07 | 0.96 | 1.07 | .37 | −1.13 | 3.05 |
Intercept social | 4.67 | 1.42 | .001 | 1.90 | 7.45 | 4.68 | 1.42 | .001 | 1.89 | 7.46 |
Intercept CESD | 23.91 | 8.23 | .004 | 7.78 | 40.04 | 23.71 | 8.17 | .004 | 7.70 | 39.72 |
Age → Cog | −0.04 | 0.08 | .61 | −0.21 | 0.12 | −0.41 | 0.23 | .08 | −0.86 | 0.05 |
Age → physical | −0.002 | 0.01 | .87 | −0.03 | 0.02 | −0.002 | 0.01 | .89 | −0.03 | 0.02 |
Age → social | −0.02 | 0.02 | .17 | −0.06 | 0.009 | −0.02 | 0.02 | .17 | −0.06 | 0.009 |
Age → Dep | −0.11 | 0.10 | .25 | −0.30 | 0.08 | −0.11 | 0.10 | .25 | −0.30 | 0.08 |
Age → CogAct | −0.01 | 0.03 | .74 | −0.07 | 0.05 | −0.18 | 0.01 | <.0001 | −0.07 | 0.05 |
Physical → Social (a) | 0.31 | 0.10 | .001 | 0.13 | 0.50 | 0.32 | 0.10 | .001 | 0.13 | 0.51 |
Physical → Dep (a) | −1.76 | 0.52 | .001 | −2.78 | −0.74 | −1.76 | 0.52 | .001 | −2.78 | −0.74 |
Physical → CogAct (a) | 0.84 | 0.16 | <.0001 | 0.52 | 1.16 | 0.84 | 0.16 | <.0001 | 0.52 | 1.16 |
Physical → Cog (c′) | 0.70 | 0.47 | .14 | −0.23 | 1.61 | −1.11 | 1.23 | .37 | −3.52 | 1.30 |
Social → Cog (b) | 1.32 | 0.40 | .001 | 0.53 | 2.11 | 0.85 | 1.02 | .41 | −1.15 | 2.84 |
Dep → Cog (b) | 0.002 | 0.08 | .98 | −0.15 | 0.17 | −0.20 | 0.20 | .32 | −0.59 | 0.19 |
CogAct → Cog (b) | 0.41 | 0.21 | .001 | −0.01 | 0.83 | 2.57 | 0.55 | <.0001 | 1.48 | 3.66 |
Indirect social | 0.41 (.06) | 0.17 | .02 | 0.11 | 0.82 | 0.27 (.01) | 0.33 | .41 | −0.38 | 1.04 |
Indirect Dep | −0.004 (.002) | 0.14 | .98 | −0.32 | 0.28 | 0.34 (.01) | 0.38 | .36 | −0.35 | 1.15 |
Indirect CogAct | 0.34 (.05) | 0.19 | .07 | −0.01 | 0.76 | 2.16 (.10) | 0.65 | .001 | 1.05 | 3.55 |
Parametric bootstrap confidence intervals based on the Monte Carlo method were obtained for the indirect effects
N 470, Cog Cognitive functioning, Dep Depression, CogAct Cognitive activity, Est. Unstandardized estimates, SE Standard errors, P Probability value, CI Confidence intervals, κ 2 Effect size for indirect effect, a direct path from predictor to mediator, b Direct path from mediator to outcome variable, c′ Direct path from predictor to outcome variable after controlling for the mediators