I have a plan that was a Multiple ER plan; ie it was adopted by Company A and Company B and no control group or ASG exists between them.
In the past, I have tested the two companies separately for ADP/ACP.
As of October 2009, allt he EEs in Company B work for Company A, Company B no longer exists.
How do I do ADP testing?
Do I everyone together? Do I test them separately up until everyone was working for the same company and then test them together? Test separately for the whole year?
(It would be better for the test if I did them together.)