Table 3.
Correlations of 2CR factors with cognitive performance and depressive symptoms
| Covariates | Dimensional CR factors | Global CR factors | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| LEI_c | SOC_c | REL_c | SES_c | FAM_c | LEI_r | SOC_r | REL_r | SES_r | CR_c | CR_r | |
| Age | − 0.164 | − 0.250 | 0.141 | − 0.003 | − 0.390 | − 0.190 | − 0.145 | 0.058 | − 0.312 | − 0.222 | − 0.307 |
| Male† | − 0.057 | 0.005 | − 0.323 | 0.336 | 0.316 | 0.196 | 0.220 | − 0.307 | 0.144 | 0.067 | 0.218 |
| MMSE (general cognitive functioning) | − 0.099 | − 0.025 | − 0.264 | − 0.011 | 0.196 | − 0.111 | 0.093 | − 0.030 | 0.073 | − 0.024 | 0.029 |
| WAIS Vocabulary (crystallized intelligence) | 0.376 | 0.468 | 0.054 | 0.622 | 0.221 | 0.391 | 0.262 | 0.078 | 0.600 | 0.481 | 0.562 |
| Raven’s (fluid intelligence) | 0.367 | 0.370 | − 0.182 | 0.353 | 0.376 | 0.389 | 0.222 | − 0.105 | 0.513 | 0.409 | 0.498 |
| LST (working memory) | 0.369 | 0.458 | 0.015 | 0.530 | 0.362 | 0.350 | 0.136 | − 0.050 | 0.452 | 0.481 | 0.435 |
| GDS (depressive symptoms) | − 0.278 | − 0.272 | − 0.104 | − 0.316 | − 0.595 | − 0.219 | − 0.139 | −0 .121 | − 0.135 | − 0.369 | − 0.232 |
Factor abbreviations are defined in Table 1. Factors’ suffix “_c” refers to current, and suffix “_r” refers to retrospective. Correlations between covariates and dimensional CR factors were estimated in a first-order factor model (i.e., without global CR factors). MMSE = Mini-Mental State Examination, adjusted for age and education level. WAIS vocabulary subtest. Raven’s = Raven’s progressive matrices, total correct. LST = listening span task (working memory), words correctly recalled. GDS = Yesavage Geriatric Depression Scale. Non-significant (p > .05) correlations are shown italicized. The listed covariates were added to models 1 and 3 (Table 2), respectively. This allowed us to calculate correlations of these measures with the global CR factors (model 1) and with the dimensional CR factors (model 3)
†Point-biserial correlations