Types of social media use are differentially associated with trait and momentary affect.

Research on how social media use (SMU) is associated with emotion is equivocal, possibly because the factor structure of SMU had not been adequately identified. Prior research has found support for four SMU types: belief-based (e.g., sharing opinions), comparison-based (e.g., body comparison), image-based (e.g., monitoring likes), and consumption-based (e.g., watching videos). In this study, we examined how participants' weekly engagement in each SMU type was associated with trait affect and how engagement in each type in real time was related to changes in momentary affect (preregistered: https://osf.io/qupf3/). A total of 382 college students in the spring of 2022 reported on the extent to which they engaged in each SMU type over the last week and their trait affect. They also engaged in each SMU type (randomized) for 3 min, rating their affect before and after. Only comparison-based SMU showed the same pattern of associations at trait and momentary levels, being associated with lower positive affect and higher negative affect (NA) at both timescales. Image- and consumption-based SMU were associated with higher trait NA, but resulted in people feeling better in real time. Belief-based SMU was associated with higher trait positive affect and NA, but made people feel worse in real time. Understanding how SMU types are associated with emotional experiences depends on the timeframe. Findings hold important implications for research examining how SMU is associated with mental health and well-being. (PsycInfo Database Record (c) 2024 APA, all rights reserved).