Wyldkat, one process that is sometimes recommended goes like this (stepwise progression, master each step before going on to the next; reward successes at each step):
- get him to go in the diaper, but in the bathroom
- get him to go in the diaper, but next to the toilet
- get him to go in the diaper, but on the toilet
- cut a hole in the diaper, get him to go *through* the diaper into the toilet
- once that's routine (always on the toilet, but through the diaper), take off the diaper and only put it on when he goes
- once he's very used to being on the toilet successfully, then get rid of the diaper.
Cumbersome as heck, but our ped. swears by it for difficult-to-train kids.
I do recommend evaluating for the 2e if you're not sure-- if there are issues where intervention is appropriate, getting them is better than not IMO.
DeeDee