# The relationship between interpersonal security and social media dependence: a moderated mediation model

## TL;DR

This study explores how interpersonal security affects social media dependence through negative rumination and how this relationship differs between only-children and non-only-children.

## Contribution

The study introduces a moderated mediation model linking interpersonal security and social media dependence, highlighting cohort differences.

## Key findings

- Negative rumination mediates the relationship between interpersonal security and social media dependence.
- The mediating effect varies between only-child and non-only-child college students.
- The findings offer insights for reducing social media dependence by improving interpersonal security.

## Abstract

Interpersonal security is an important psychological factor influencing social media use. However, little is known about the mediating and moderating mechanisms linking Interpersonal security and social media dependence.

The present study explored the mediating role of negative rumination between interpersonal safety and social media dependence, as well as cohort differences in sibling conditions as moderators.

A total of 986 college students were surveyed using a cross-sectional design. Participants completed the Interpersonal Security Questionnaire, the Social Media Dependence Scale, and the Negative Rumination Scale.

The results showed that a significant interrelationship between interpersonal security, negative rumination, and social media dependence. In addition, the role of negative rumination as a mediator of interpersonal security and social media dependence was supported, and the mediating effects were different between the only-child and non-only-child cohorts.

Findings of the study provide a psychological basis for the treatment of social media dependence behavior in college students, with the aim of increasing their interpersonal security and reducing their dependence on social media.