Title says it all really 
Tried potty training her when she was 2.5, and she really wasn't interested or bothered so put her back in nappies until she turned 3 a few weeks ago. (She has a twin who we potty trained at same time, she hated having an accident and was dry and clean, and using toilet rather than potty, within a week or so.)
This time around, she has done pretty well with the wees, and happily uses the toilet. She can climb up, wipe herself, flush, wash hands on her own - in fact she wants to do it herself and shoos me away if I try and help. But for some reason she's still pooing in her pants - it's like she doesn't actually realise she needs to go, and doesn't always say that it's happened either.
It is possible to have cracked the bladder control but still lack bowel control, even after a few weeks of training? And any ideas of how I can help her? Have tried rewarding etc but makes no difference.