IA Research question

I am planning to narrow the focus from my last IA and attempt to conduct at least one interview.

IA Research Question (from last year): What is the importance of the five pillars of Islam to the religion?

I think I would like to modify this research question to focus on what I believe to be the most important pillar and what its importance is.

First I will need to review my research as well as conduct new research in order to determine this.