Research Study: How Do You Test Your MATLAB?

Have you ever wondered how scientists test their code? We have, and we'd like you to help us find out. If you use MATLAB, please have a look at our new research project—and please forward the link to other groups and lists where we might be able to recruit people. (Of course, we'd also welcome input from NumPy users...)

See also these posts from Steve Eddins, who built the MATLAB xUnit testing framework, and thanks in advance for your help.