My target audience

I want to target my teaser trailer at ages between 16-19. I am going to make my teaser trailer quite scary and real life, this way any age younger it may scare them. To help understand what my target audience like, understand and want to see in a teaser trailer, I am going to be creating a questionnaire! I will being asking questions all about teaser trailer's and asking various questions that have outcomes which will help me to make my trailer interesting.