Table 2 Unstandardized coefficients of baseline models, main effect models, and moderation models

Working memory model: adolescent digit span ON

Mother digit span

0.18

0.08

.03

0.18

0.08

.03

0.18

0.08

.03

Mother foreigner stress

–

–

–

 − 0.159

0.10

.10

 − 0.16

0.09

.09

Mother economic stress

–

–

–

0.70

0.41

.09

 − 0.51

0.39

.19

Mother digit span × FS

–

–

–

–

–

–

 − 0.27

0.11

.01

Mother digit span × ES

–

–

–

–

–

–

0.65

0.46

.15

R-Square

0.11

0.05

.00

0.06

0.03

.06

0.20

0.06

.001

Chi-square test

–

χ²(3) = 0.24, p = .97

χ²(9) = 6.72, p = .67

CFI

–

1.00

1.00

RMSEA [90% CI]

-

.00 [90% CI: 0.00, 0.00]

.00 [90% CI: 0.00, 0.07]

Shifting model: adolescent reaction time of switch cost ON

Mother RT in switch cost

0.08

0.06

.16

0.08

0.06

.17

0.05

0.06

.44

Mother foreigner stress

–

–

–

 − 18.58

15.56

.23

 − 21.41

15.64

.17

Mother economic stress

–

–

–

 − 27.44

74.20

.71

 − 30.96

71.90

.67

Mother RT in switch cost × FS

–

–

–

–

–

–

12.97

6.44

.04

Mother RT in switch cost × ES

–

–

–

–

–

–

32.85

28.07

.24

R-Square

0.06

0.03

.09

0.06

0.03

.06

0.08

0.04

.03

Chi-square test

–

χ²(3) = 1.07, p = .78

χ²(9) = 10.28, p = .33

CFI

–

1.000

0.96

RMSEA [90% CI]

–

.00 [90% CI: 0.00, 0.08]

.03 [90% CI: 0.00, 0.09]

Inhibitory control model: adolescent reaction time of Simon effect ON

Mother RT in Simon effect

 − 0.03

0.06

.65

 − 0.04

0.06

.51

 − 0.04

0.06

.56

Mother foreigner stress

–

–

–

 − 4.12

3.33

.22

 − 4.48

3.40

.19

Mother economic stress

–

–

–

38.71

18.00

.03

40.54

18.02

.02

Mother RT in Simon effect × FS

–

–

–

–

–

–

0.10

0.07

.18

Mother RT in Simon effect × ES

–

–

–

–

–

–

0.12

0.33

.73

R-Square

0.03

0.03

.25

0.07

0.04

.10

0.08

0.05

.09

Chi-square test

–

χ²(3) = 1.57, p = .67

χ²(9) = 4.31, p = .89

CFI

–

1.00

1.00

RMSEA [90% CI]

–

.00 [90% CI: 0.00, 0.10]

.00 [90% CI: 0.00, 0.04]