
Has she taken any classes in early childhood education or child development? \012Is she trained and certified in pediatric CPR and first aid?
You want to get a sense of her experience with infants versus older children etc. Just hearing how she talks about the children will provide you valuable feedback. Does she sound positive, bitter, loving, indifferent?
Does she have positive things to say about her past employers? Are they currently on good terms? Why did that position end? What other duties has she been comfortable performing?
Invent something rare and extreme like say a house fire and something ordinary and routine like a child spilled something on the carpet. She needs to be prepared in the case of an emergency but she also needs to have the temperament to handle the everyday challenges of child rearing.
Consistency is important. Now is the time to find out that she has plans to back pack across Europe next summer.