Media & Publishing / Editorial Analytics

Engaged Time / Attention Minutes ~ (aliases: active exposure time, attention minutes, active engaged time)

How long readers were actually paying attention to a story, not just how long the tab was open.

The fork, why two teams get different numbers

Three "time" definitions, each a different currency.

In the Metric Library

The full fork, both definitions worked all the way through
The trap that makes the number lie, on a real export
Every formula variant, spelled out
The reconciliation anchor, what to tie it to and when to refuse

Reference: MRC in-view/active-view time (reference); IAB attention-measurement convention (reference); editorial-analytics practice (no single standards body)