The difference between pageviews, screener views, and responses can be a little confusing.
Pageview: is generated any time your server pings our server. So let's say you've placed your code on a page that gets 1,000 pageviews. Every single one of those is going to say to Ethnio "hey should we show the screener?" Because we set a cookie to ensure that nobody sees a screener twice, the vast majority of those pageviews will not result in a screener being shown. That's because there are tons of reloads and return visits on any given page. You might also have the screener turned all the way off, in which case pageviews will continue to accrue, but no screener views will appear. You can read more about this here.
Screener Views: This refers to the amount of times a screener was seen by one of your site visitors.
Responses: The amount of responses that occurred after a visitor saw your screener. Does not mean completed responses, but they had some type of interaction with your screener.
The Ethnio Viewing Funnel explains a bit of the breakdown of all three key terms and how they correlate with each other: