Table 3.
Correlations and descriptive statistics
| Mean (SD) n | 2. Total lag | 3. M2 Episodic memory | 4. M3 Episodic memory | 5. M2 Executive function | 6. M3 Executive function | 7. M2 BTACT composite | 8. M3 BTACT composite | 9. Aperiodic exponent | 10. IAPF | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1. Age (MIDUS 2 Neuroscience) | 55.10 (10.71) n = 235 |
−0.12 [−0.25, 0.01] p = 0.076 n = 235 |
−0.18 [−0.30, −0.05] p = 0.010 n = 228 |
−0.24 [−0.36, −0.11] p = 0.001 n = 223 |
−0.35 [−0.46, −0.23] p < 0.001 n = 228 |
−0.32 [−0.43, −0.20] p < 0.001 n = 230 |
−0.36 [−0.47, −0.24] p < 0.001 n = 224 |
−0.34 [−0.45, −0.21] p < 0.001 n = 219 |
−0.29 [−0.40, −0.17] p < 0.001 n = 235 |
−0.23 [−0.34, −0.10] p = 0.001 n = 235 |
| 2. Total Lag (M2 to M3 Cognitive Projects, years) | 9.71 (0.92) n = 235 | - |
−0.06 [−0.19, 0.07] p = 0.389 n = 228 |
−0.07 [−0.20, 0.06] p = 0.362 n = 223 |
−0.17 [−0.29, −0.04] p = 0.018 n = 228 |
−0.30 [−0.41, −0.17] p < 0.001 n = 230 |
−0.16 [−0.29, −0.03] p = 0.021 n = 224 |
−0.29 [−0.41, −0.17] p < 0.001 n = 219 |
0.14 [0.01, 0.26] p = 0.049 n = 235 |
−0.06 [−0.18, 0.07] p = 0.416 n = 235 |
| 3. Episodic memory MIDUS 2 | 0.00 (0.93) n = 228 | - |
0.56 [0.46, 0.64] p < 0.001 n = 217 |
0.36 [0.24, 0.47] p < 0.001 n = 224 |
0.32 [0.19, 0.43] p < 0.001 n = 223 |
0.56 [0.47, 0.65] p < 0.001 n = 224 |
0.41 [0.29, 0.52] p < 0.001 n = 213 |
0.03 [−0.10, 0.16] p = 0.639 n = 228 |
0.16 [0.03, 0.28] p = 0.023 n = 228 |
|
| 4. Episodic memory MIDUS 3 | −0.11 (1.10) n = 223 | - |
0.26 [0.13, 0.38] p < 0.001 n = 217 |
0.37 [0.25, 0.48] p < 0.001 n = 219 |
0.39 [0.27, 0.50] p < 0.001 n = 213 |
0.59 [0.49, 0.67] p < 0.001 n = 219 |
0.01 [−0.12, 0.14] p = 0.867 n = 223 |
0.19 [0.06, 0.31] p = 0.007 n = 223 |
||
| 5. Executive function MIDUS 2 | 0.01 (0.65) n = 228 | - |
0.69 [0.62, 0.76] p < 0.001 n = 223 |
0.97 [0.96, 0.98] p < 0.001 n = 224 |
0.68 [0.60, 0.74] p < 0.001 n = 213 |
0.13 [0.00, 0.26] p = 0.054 n = 228 |
0.14 [0.01, 0.27] p = 0.045 n = 228 |
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| 6. Executive function MIDUS 3 | −0.44 (0.74) n = 230 | - |
0.69 [0.61, 0.75] p < 0.001 n = 219 |
0.97 [0.96, 0.98] p < 0.001 n = 219 |
0.04 [−0.09, 0.17] p = 0.566 n = 230 |
0.19 [0.06, 0.31] p = 0.006 n = 230 |
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| 7. BTACT composite MIDUS 2 | 0.01 (0.62) n = 224 | - |
0.70 [0.63, 0.77] p < 0.001 n = 209 |
0.13 [0.00, 0.26] p = 0.062 n = 224 |
0.16 [0.03, 0.29] p = 0.020 n = 224 |
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| 8. BTACT composite MIDUS 3 | −0.37 (0.71) n = 219 | - |
0.04 [−0.09, 0.17] p = 0.566 n = 219 |
0.21 [0.08, 0.34] p = 0.003 n = 219 |
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| 9. Aperiodic exponent | 1.20 (0.28) n = 235 | - |
−0.16 [−0.28, −0.03] p = 0.020 n = 235 |
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| 10. IAPF | 9.60 (0.98) n = 229 | - |
Bold values are significant at p < .05.