1 | Age | 1 | | | | | | | | | | | | | |
2 | Gender | −0.05** | 1 | | | | | | | | | | | | |
3 | Occupation | −0.09** | 0.01 | 1 | | | | | | | | | | | |
4 | Education | −0.20** | −0.01 | 0.53** | 1 | | | | | | | | | | |
5 | Income | −0.38** | 0.03* | 0.66** | 0.45** | 1 | | | | | | | | | |
6 | Verbal memory | −0.23** | 0.04** | 0.20** | 0.19** | 0.24** | 1 | | | | | | | | |
7 | AH 4 | −0.22** | 0.05** | 0.60** | 0.42** | 0.48** | 0.33** | 1 | | | | | | | |
8 | Mill Hill | −0.07** | 0.00 | 0.57** | 0.42** | 0.37** | 0.28** | 0.69** | 1 | | | | | | |
9 | Phonemic fluency | −0.21** | 0.03* | 0.34** | 0.27** | 0.33** | 0.32** | 0.49** | 0.40** | 1 | | | | | |
10 | Semantic fluency | −0.24** | 0.00 | 0.40** | 0.32** | 0.35** | 0.34** | 0.58** | 0.50** | 0.60** | 1 | | | | |
11 | Index of low cognitive effort | 0.06** | 0.02 | 0.26** | 0.08** | 0.10** | 0.05** | 0.18** | 0.14** | 0.08** | 0.11** | 1 | | | |
12 | Index of high cognitive effort | 0.07** | 0.00 | 0.31** | 0.23** | 0.09** | 0.13** | 0.30** | 0.31** | 0.19** | 0.23** | 0.29** | 1 | | |
13 | Individual activities | 0.10** | 0.01 | 0.27** | 0.15** | 0.06** | 0.06** | 0.21** | 0.22** | 0.10** | 0.15** | − | − | 1 | |
14 | Social activities | 0.02 | 0.00 | 0.29** | 0.15** | 0.14** | 0.11** | 0.27** | 0.23** | 0.16** | 0.18** | − | − | 23** | 1 |