Lee Willis

This plugin lets you set up two different templates with differences that you think might increase conversions, serve these different templates up to users, and track their activity using custom segments in Google Analytics.
Alternatively you can use it to “choose” a particular theme by setting a URL parameter so you can experiment using different themes yourself (Particularly useful when developing your “split” themes!

SES Theme Split Test

Split test your wordpress theme, and track test using Google Analytics user defined values.

kylegetson

Ever need to duplicate a paragraph of text? How about a group of links? 
Maybe your doing split testing for advertising or landing pages, and you want easily 
keep pages in sync. Now you can with the Shortcode Generator Plugin. 
Simply create as many shortcodes as you want, and use them where ever you need them. 
You can add them to pages, posts, template files, or even add a shortcode as a widget!
Features:
<ul>
<li>Create unlimited shortcodes</li>
<li>Create Shortcodes within other generated shortcodes</li>
<li>Add shortcodes to pages, posts, or template files</li>
<li>Add a shortcode as a widget (allows multiple instances)</li>
<li>Add a shortcode using a WYSIWYG editor, or a plain text box (for more complicated javascript or HTML)</li>
<li>Works with WordPress shortcodes (like the caption) and other plugin?s shortcodes as well!</li>
</ul>

Shortcode Generator

Generate as many shortcodes. Keep pages synchronized for split testing, or reuse a specific peice of code on multiple pages.

SES Theme Split Test vs Shortcode Generator