Hi Susan, the airport is 30 minutes from NIH. There is a shuttle that runs back and forth all day from the airport to NIH back to the airport. Will you have to be back to the conference on those days that you will be at NIH, if not maybe they can provide you with a place to stay for that night.

   Your urine container will be in a bag lol, so nobody will actually know what it is. They will even give you a few pair of disposable gloves to handle it with.

 The psychological was basically to see how smart you are, like cognitive testing. Mine seemed to take about 2 hours for one, and the other was like a video game though, and it seemed to test spacial abilities.

 Nothing to do with sexuality or anything like that, no questions like did you play with cars or dolls that I am aware of.

 Good luck!