Glossary
Engagement rate
Definition
Engagement rate is interactions as a share of reach.
The problem with it
It rewards content that provokes, which is why ragebait works. Optimising for engagement and optimising for usefulness point in different directions more often than the industry admits.
More terms
Early childhood education
Structured education before compulsory schooling begins.
Generative engine optimisation
Structuring content so that AI systems cite it when answering questions.
Population pyramid
A chart showing the size of each age band, split by sex,…
Learning loss
Measurable falls in attainment relative to expectation, most often used about the…
Natural increase
Births minus deaths, excluding migration.
School starting age
The age at which compulsory schooling begins — four in the UK…