Wow, thank you! One further question, I also have to help with another analysis, so just so I don't lead my co-worker astray, let me verify.
Since her dataset has both a patient and a non-patient group perform all conditions, you're saying she would need to use a 3dANOVA3 -type 5(???), treating patient group and task as fixed variables and subjects as a random variable that might also be affected by group type, which would have to be variable A. In other words, the order of the columns would have to be group type, condition subbrik, subjects as a random variable. Is this what you mean by 'nested' design. (AxB), (BXC), C(A)? Or should her analysis be -type 4? Much thanks for any help!
Mariko