Table 3 Pearson’s correlation among study variables

1. Mothers’ emotional intelligence

–

2. Mothers’ negative parenting behaviour

−0.437^***

–

3. Preschoolers’ attachment instability

−0.225^***

0.563^***

–

4. Self-control failure

−0.110

0.349^***

0.390^***

–

5. Salience

−0.047

0.414^***

0.386^***

0.414^***

–

6. Serious consequences

−0.205^**

0.501^***

0.591^***

0.495^***

0.683^***

–

7. Preschoolers’ smart device overdependence

−0.143^*

0.508^***

0.547^***

0.764^***

0.850^***

0.872^***

8. Mothers’ smart device usage time

−0.104

0.033

0.002

−0.180^**

−0.041

− 0.096