Table 7:

Multilevel models to test hypothesis 7a and 7c

	Episodic Memory			Executive Functioning			BTACT Composite
Predictors	Estimates	CI	p	Estimates	CI	p	Estimates	CI	p
Intercept (M2)	−0.44	−0.62 – −0.26	<0.001	−0.06	−0.18 – 0.06	0.340	−0.12	−0.23 – −0.00	0.046
MIDUS Wave	−0.11	−0.24 – 0.03	0.122	−0.43	−0.50 – −0.35	<0.001	−0.38	−0.46 – −0.31	<0.001
Exponent	0.07	−0.38 – 0.52	0.748	0.16	−0.14 – 0.46	0.304	0.15	−0.13 – 0.43	0.290
Age	−0.02	−0.03 – −0.01	0.002	−0.02	−0.03 – −0.01	<0.001	−0.02	−0.03 – −0.01	<0.001
Sex	0.73	0.52 – 0.94	<0.001	0.11	−0.04 – 0.26	0.140	0.22	0.08 – 0.36	0.002
Education	0.16	0.04 – 0.29	0.010	0.13	0.05 – 0.21	0.002	0.13	0.06 – 0.21	0.001
Lag between Waves	−0.10	−0.21 – 0.01	0.080	−0.22	−0.29 – −0.14	<0.001	−0.20	−0.27 – −0.13	<0.001
Wave × Exponent	−0.14	−0.62 – 0.33	0.557	−0.23	−0.50 – 0.05	0.104	−0.19	−0.45 – 0.08	0.166
Wave X Age	−0.01	−0.02 – 0.00	0.122	−0.00	−0.01 – 0.01	0.687	−0.00	−0.01 – 0.00	0.476
Exponent X Age	−0.01	−0.06 – 0.04	0.677	0.01	−0.02 – 0.04	0.632	0.01	−0.02 – 0.03	0.695
Wave X Exponent X Age	0.03	−0.02 – 0.08	0.201	0.00	−0.02 – 0.03	0.755	0.00	−0.02 – 0.03	0.858
Random Effects
σ2	0.46			0.16			0.14
τ00	0.39 M2ID			0.22 M2ID			0.19 M2ID
ICC	0.46			0.59			0.58
N	234 M2ID			235 M2ID			234 M2ID
Observations	451			458			443
Marginal R2 / Conditional R2	0.195 / 0.563			0.294 / 0.710			0.311 / 0.710

Note: Repeated measured cognitive data nested within participant, indicated by M2ID. Sex coded as 0 = male, 1 = female. Education coded as −1 = high school or less, 0 = some college, 1 = Bachelor’s degree or higher. MIDUS Wave coded as 0 = MIDUS 2, 1 = MIDUS 3. Years between Waves (i.e., between MIDUS 2 and MIDUS 3 Cognitive Projects) and Age at M2 Neuroscience Project are mean centered. Empirical Bayes slope estimation used (Bates et al., 2015).