View module diplaying wrong content type extra
You need to set up a filter - filter by content and choose the content type you want to show or use a contextual filter(advanced settings) to show only the content type you want to show. Right now youre not filtering so your view is set to show all content types. 

In the example below I have a relationship of author. I have a contextual filter set up with this relationship so that it will only show content with this relationship and finally i have a filter that only shows content types of the kind flashcard and only the content where the logged in user is the author of the content. 



There is a great set of tutorials about views here at nodeone