> If it is useful in helping people to not harm themselves and others
this is a big if. the way AA is structured (they don't themselves collect any statistics about efficacy whatsoever) makes it extremely difficult to draw any conclusions about how helpful it is.
as other people have said, AA essentially provides free group therapy, which is likely to be at least slightly helpful. i'm not sure there's any evidence to suggest that the 12 steps or higher power aspect yield any benefits over generic group drug counseling.
There is some evidence that the higher power business works[1]. Anyway, it will always be difficult to directly judge a particular organization rather than its methods.
[1] The Power of Habit, by Charles Duhigg : while not scientifically spotless, the book directly addresses the methods of AA. To successfully establish a change in habit, one needs a belief that I can change : there is some sound evidence presented in the book.
Smart Change, by Art Marckman : he is literally a scientist and I can't find anything scientifically incorrect in this book. He also mentions and gives evidence for the advantage of belief in one's ability to change : here the context is not directly AA.
this is a big if. the way AA is structured (they don't themselves collect any statistics about efficacy whatsoever) makes it extremely difficult to draw any conclusions about how helpful it is.
as other people have said, AA essentially provides free group therapy, which is likely to be at least slightly helpful. i'm not sure there's any evidence to suggest that the 12 steps or higher power aspect yield any benefits over generic group drug counseling.