Susan,

I think it's great you are asking for some input; that's what forums like this are all about right?

My experience suggests that Martin has it dead-on. Whenever you are trying to get useful and objective info (interview, coaching, management, etc), then you always want to go with "open" vs "closed" questions.

"Closed" questions can be answered with a single word/thought.

"Open" questions can't be answered with a yes or no. They require the person to think and share with you.

Start with open questions and then use closed questions only when absolutely needed to clarify any confusion.

For examaple...
"Did you hit your classmate?"
vs
"What happened in class earlier?" -listen- "How did it start?" -listen - (only then if needed...) "So you are saying he walked up and kicked you without you saying a single word to him. Is that right?"

Hope that all makes sense and best of luck on your interviews.