A Wordpress plugin that allows me to create multiple choice, short answer, or true/false questions and allows me to put them in a page or post. 
Here are the features that should be included:  I should be able to easily create the test within the Wordpress admin panel, I should be able to add special instructions for each quiz, when taking the quiz the questions or answers should be able to display in a random order, I should be able to add questions with text, images, video, and sound, I should be able to add a time restraint to the quiz, I should be able to select a button that would eleminate one or two incorrect answers for handicapped students, I should be able to have a bank of test questions, I should be able to add a difficulty level for each question to create a test to adapt to the student (if they miss a high level question more lower level questions are added), I should be able to add a qualifying standard to each question (for statistics or meeting state and national requirements), I would like a condition that would allow a link to be displayed if the student scored a certain percentage (if a student scores over an 80 they receive a link to more advanced lessons), I would like to limit eh number of quiz attempts of the student, I would like to send the quiz results to teachers, students, or parents by email or text message, I should be able to display the usernames of the top scores for a quiz (I would like this plugin to integrate with the TechCube plugin so that students could earn points for high results), after a quiz has been taken I need quiz statistics (if they were able to meet state and national standards), I would like this plugin to integrate with the Wishlist Member plugin to save score reports for website members that could be viewable by their teachers (add in [private_level] code for teacher membership level when their school name is selected at the beginning of the quiz).

 I require complete and fully-functional working program(s) in executable form as well as complete source code of all work done (so that I may modify it in the future).
The plugin must be in ready to run condition.  I will receive exclusive and complete copyrights to all work purchased.
I should be able to have a unlimited number of revisions.  I should be able to upload the plugin through the plugin panel in Wordpress, and it should not be incompatible with other plugins.