The author of the original article is not particularly neutral from the start off, is he - he is not exactly on Jung's side, it seems he is more is a firm supporter of the Marxist view of religion as opium for the people. But that put aside, and the findings are as they are - just a question: I remember a discussion of this article around 1980, and there were some psychiatrists - among whom a priest (!) - that critizised the study and stated it was poor from a methodology point of view. That it was flawed. I do not remember the particulars, but remember there were some discussions about it. And it was also stated that the JWs in Western Australia were not respresentable of Australian JWs as a whole, because the young male JWs refusing military service were sent to isolated outposts or prisons in Western Australia and so suffered isolation for a longer period, resulting in mental problems. I repeat I am not trying to say the results tell something dofferent from what they do - but it sould have been interesting to see the tabulations or figures broken down by age and sex, and if the younger male group was predominant, the isolation because of imprisonment would be a contributing factor. That point of view, as I recall, was the major point of critisim against the study.
Such a long time has elapsed sice the 70s that it probably is far-fetched to believe anyone else has a slight recollection of this, but there might be an oldtimer or two remembering it ................