What core metrics are generated by Twitch’s first party data?

Twitch's first-party data directly tracks key engagement metrics essential for understanding audience behavior and content performance. Unique viewers count individual users who have watched a stream, providing a measure of reach. Hours watched quantify the total time viewers spent consuming content, indicating overall engagement and content stickiness. Concurrent viewers represent the number of viewers watching at any given moment, reflecting live popularity and peak interest. The other options include metrics that are either not core first-party data points or are less fundamental for initial performance assessment. "Viewer location" and "games played" are important but often derived or secondary to the core engagement metrics. "Channels engaged" and "categories represented" are more about viewer behavior across the platform rather than direct performance of a specific stream or channel.