Follow up Posting Based on Comments

This is a follow up posting based on the comments that I received for my previous posting. I have made this as an FAQ:

Q) What is Captivation Quotient?

A: We measure this on a 10 point scale. I define this the reverse way, I say that the CQ is 0 if everyone is listening without any head movement and if there is a lot of head movement then the CQ score increases towards 10. I am still not sure what situation should amount to a 10 on 10. Maybe you guys must suggest me :-)

Q) What if students are sleeping or what if a student is nodding his head just because he is understanding every bit?

A: In a given classroom, it is very improbable that everyone is sleeping. So, we can discount this case. The way audience nod their head when they understand the lecture is way different from the way they move their head when the class gets boring. I believe we must be able to detect the difference very easily.

Q) What if students are moving their heads constantly just because they are taking notes from the slides?

A: Again the same reasoning holds good. There is a pattern in which we move heads when we write down notes or when we nod our heads acknowledging that we are understanding what the speaker is speaking. Our motive is to silence such patterns in our data.