You might want to try some books on pooping in the potty, not just vague "I'm a big kid and I use the potty" books, specifically ones that talk about pooping. These two are both really great for getting kids to poop on the potty. If you can't find a book that works, I'd suggest making a social story.
As you said, it doesn't sound like bowel control is an issue, and since she's been peeing for a year it sounds like the toilet itself isn't a problem either. You could also try bribing her with stickers or toys, but I babysat for a woman who did this with her kid and he started pooping just a tiny bit at a time and demanding a toy after every little deposit.
This?
You might want to try some books on pooping in the potty, not just vague "I'm a big kid and I use the potty" books, specifically ones that talk about pooping. These two are both really great for getting kids to poop on the potty. If you can't find a book that works, I'd suggest making a social story.
https://www.amazon.com/Cant-Wont-No-Way-Children/dp/1466453737/
https://www.amazon.com/Wheres-Poop-Julie-Markes/dp/0060530898/
As you said, it doesn't sound like bowel control is an issue, and since she's been peeing for a year it sounds like the toilet itself isn't a problem either. You could also try bribing her with stickers or toys, but I babysat for a woman who did this with her kid and he started pooping just a tiny bit at a time and demanding a toy after every little deposit.
Hes too young but I got my nephew this; http://www.amazon.com/Wheres-Poop-Julie-Markes/dp/0060530898
I READ IT TO HIM ANY TIME I CAN.