Table 2 Mixed model output for the latent general cognitive factor from the one class model (n = 2854)

Intercept (I)

0

Linear slope (t)

−0.47

0.46

0.30

Quadratic slope (t²)

−2.45

1.56

0.12

Female

I

0.04

0.19

0.83

t

0.05

0.25

0.85

t²

−0.42

0.81

0.60

Medium education

I

1.07

0.13

<0.001

t

0.41

0.15

0.01

t²

−1.58

0.53

0.003

High education

I

2.03

0.19

<0.001

t

0.23

0.21

0.26

t²

−0.75

0.71

0.29

Medium social engagement

I

0.57

0.30

0.06

t

−0.13

0.48

0.79

t²

0.11

1.66

0.95

High social engagement

I

0.70

0.29

0.02

t

−0.07

0.45

0.87

t²

−0.17

1.52

0.91

Large network size

I

0.11

0.12

0.37

t

0.05

0.21

0.80

t²

−0.38

0.71

0.59

Network satisfaction

I

−0.05

0.17

0.77

t

0.03

0.23

0.90

t²

−0.44

0.77

0.57

Feel well understood

I

−0.15

0.09

0.09

t

0.14

0.06

0.03

t²

0.00

0.06

0.94