I’ve only led worship a few times, but every time I came away thinking... how do we include more persons in the worship experience? This article tackles this question from a few angles including a scientific study. If you’re involved in worship leading or preparation, I’d recommend checking out this article for some ideas.
http://www.ministrymatters.com/all/entry/6177/how-to-encourage-people-to-sing-in-worship
How do you encourage more participation in singing?