Studies must employ causal inference methods, e.g. Directed Acyclic Graphs (DAGs), to define causal estimands & to identify contextual factors that drive young people’s online experience, & affect their mental health.
Image credit: The Lancet Child & Adolescent Health; KL Mansfield et al., 2025

Understanding impacts & regulating AI requires addressing those challenges & employing robust methods, in structured collaborations between researchers, tech firms, policymakers, practitioners, caregivers & young people.
Image credit: The Lancet Child & Adolescent Health; KL Mansfield et al., 2025

We analyse these limitations, identifying key challenges in the design, implementation & interpretation of research; from developing theory, designing measures, collecting data, planning analyses, to interpreting results.
Image credit: The Lancet Child & Adolescent Health; KL Mansfield et al., 2025

When you intentionally follow bots but not enough humans, and don't post very often, there's a good chance that this is what your feed will look like when you log onto this platform in the morning. Note to self to follow more people and be more active on here.

Using only a restaurant, tell us where you went to college.
(I went twice, long story...)