It also depends on what you mean by setbacks.
She still won't poop in the potty - only in a diaper during her nap or when she first goes to bed. That's common and just takes time for her to get comfortable with the idea of pooping in the potty.
Wearing diapers or a pullup for naptime or bedtime is also common for many years. And from everything I've read, any attempt to "night time train" should wait until the child has been fully daytime trained for at least 6 months. If the child self-trains, great. If not, then they need to have a good grasp of it in the day first.
at 2:28 PM on Jan. 14, 2009