You’re observing your client, Allison, in the classroom when…

You’re observing your client, Allison, in the classroom when some new students come in the room. The teacher comes around and introduces the new students to each current student. Allison has always struggled with saying “Hi” to people she doesn’t know. The teacher gets to her and introduces the new students. You want to measure the length of time it takes her to say “Hi” after the introduction that the teacher makes. What are you measuring?