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USC Marshall Neely Ethics & Technology Indices

Reddit in Transition: A Two-Year Examination of Social Media Experiences and Evolution
In the past 2 years, Reddit has grown its user base while also increasing the proportion of users who learn important/useful things & decreasing the…
 • 
Emily Xing
, 
Yuning Liu
, 
Ravi Iyer
, and 
Nathanael Fast
Social Media Experiences Across Nearly 2 Years Since Launching the Social Media Index
With new data through January 2025, we find that social media use is decreasing, bad experiences are mostly holding steady, and positive experiences are…
 • 
Matt Motyl
6
Social Media and Politics from 2023-2025
I examine the political identities, extremity, and polarization of US adults across platforms over a 2-year national survey.
 • 
Matt Motyl
How Social Media Experiences Changed from March 2023 through May 2024
With new data through May 2024, we find that Reddit is increasingly informing users, while X isn’t across 5 survey waves conducted between 2023 & 2024
 • 
Matt Motyl
How do Polish adults use and experience social media?
X and Facebook users report highest rates of negative experiences in Poland; YouTube users report the most learning experiences
 • 
Matt Motyl
1
Do people still have meaningful connections on social media?
We examine how people’s connections with others online may have changed over 1 year marked by an influx of AI chatbots & unconnected content
 • 
Matt Motyl
Has social media become more (or less) informative in the last year?
Nextdoor & Pinterest lead the way in becoming more informative places for users; YouTube remains the most informative platform
 • 
Matt Motyl
How negative experiences on social media changed in the last 12 months
NextDoor, Facebook, TikTok, and Reddit users report fewer negative experiences today than a year ago; not so much on Instagram or X (Twitter)
 • 
Matt Motyl
10
The Fear Factor: Better Understanding Online Discussions About Crime and Safety
Today we are sharing a guest post by our friends at Yale's Justice Collaboratory who combined our Neely Social Media Index data with their research to…
 • 
Jessica Araujo
, 
Ishita Chordia
, 
Andrea Gately
, and 
Matt Katsaros
What on social media is bad for the world?
Reports of seeing content that is bad for the world are down on Facebook, and reports of content that could increase the risk of violence are up on X…
 • 
Matt Motyl
1
How Have Social Media Experiences Changed from 2023-2024
I examine usage of and user experiences of social communication services over survey waves conducted between 2023 & 2024.
 • 
Matt Motyl
1
Alone together? How social technology is influencing human connection and loneliness
We examine loneliness and social connectedness of users on different social media platforms, as well as beliefs about how social media affects…
 • 
Matt Motyl
 and 
Juliana Schroeder
5
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