Here is a clip from Elements 10, I assume the version you are using is similar:
http://img.photobucket.com/albums/v159/randol9p9/Process.jpg
If you did not put a check-mark in the box titled "Resize Images", it should not resize them.
..
I want to rename images within a folder using PS Elements. Images are renamed correctly but their size is reduced. I'm using the "process multiple files" option within the File browser menu. I've triple-checked to make sure that nothing is checked/on/toggled that would cause the image size to be altered. I'd appreciate any help. Thanks.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic