This research has two main objectives: to establish if there is evidence for distinct environment types within digital media and to understand implications for use of attention metrics. The study focused on mobile “in the wild” test using simulated media environments conducted and analyzed by Realeyes in partnership with Eye Square and Bill Harvey consulting. The study scoped to video ads on six media platforms—Meta (Facebook and Instagram), Hulu, Snapchat, TikTok, Twitter and YouTube—and three environment categories—Feed (Facebook, Instagram, twitter), Short Form (Facebook, Instagram and Snapchat stories, TikTok Takeover, Feed and TopView, and YouTube shorts) and Stream (Facebook InStream, Hulu Pre and Mid Roll, and YouTube Skippable and Non-Skippable). Study was conducted in three stages: pre-exposure survey followed by in-context view (ad visibility, skips scrolls, on-screen attention and reactions) and then post-exposure survey (examining brand recognition, ad recall, brand trust, ad liking and persuasion). A number of constants were held: 1) isolating effect of creative; 2) holding audience constant through randomization and isolation (each person sees only one ad at a time).