Suggestions on how to "test" a candidate during an interview??

Hi There,

My company is hiring a second eLearning Designer, and my supervisor came to me for suggestions on how to "test" their expertise during the interview. My interview included importing a PowerPoint into Storyline, recording audio, and then creating a brief quiz at the end. Prior to the interview, I had never used Storyline, and actually downloaded the free trial at home to self-train in preparation for the interview. I was then sent to a formal training class to learn more.

Our new hire will not be invested in the same way... they're wanting someone to walk in with advanced knowledge of Storyline. So how would you recommend "testing" this individual? I suggested providing a basic outline of the training needed, interactive elements required in the module (buttons, hotspots, lightboxes, etc), a basic script, and perhaps a folder with some saved screen shots. Does this sound like a good plan? What kinds of things do you all do when interviewing?

Thanks for your time & help!