What is media literacy, and does teaching it actually work?
The ability to access, analyse, evaluate and create media — and the evidence on teaching it is genuinely mixed, with some interventions working well and some producing effects nobody intended.
What it covers: understanding who produced something and why; recognising persuasion and framing; evaluating evidence and sourcing; understanding how algorithms select what you see; and the skills to create and publish responsibly.
What the evidence supports:
Lateral reading, which is the single best-evidenced technique. Rather than examining a page closely to judge its credibility — which is what most people do and what "checklist" approaches teach — you leave it and search for what others say about the source. Studies comparing professional fact-checkers with academics and students found the fact-checkers consistently more accurate, and the difference was this behaviour.
Inoculation, or prebunking. Exposing people to a weakened form of a manipulation technique, with an explanation, before they encounter the real thing. This has reasonable experimental support, including at scale through short videos, and works on techniques rather than on specific claims — which is what makes it generalisable.
Teaching specific techniques — emotional language, false dichotomies, scapegoating, impersonation — rather than teaching people to spot "fake news".
Accuracy prompts, where simply asking people to consider accuracy before sharing measurably reduces the sharing of false content.
What works less well, or backfires:
Checklist approaches teaching people to judge a site by its appearance, domain and "about" page — which sophisticated bad actors satisfy easily.
Generalised scepticism. Interventions that increase distrust can reduce belief in accurate information as much as inaccurate — producing cynicism rather than discernment, which is a documented and serious failure mode.
One-off sessions, without reinforcement.
Teaching only detection without teaching what good sources look like.
Where it sits structurally. Media literacy places the burden on individuals for a problem substantially created by platform design and incentives — a real criticism, and the reason regulators increasingly pair literacy duties with obligations on platforms.