From the article supplied by PS:
Several studies of Unification Church recruitment workshops reveal that, on the average, fewer than one in ten of those who got as far as attending a Church workshop agree to join the Church, and fewer than one in twenty remain with the Church for two years...
Given these statistics...the only conclusion that can scientifically be drawn is that the conversion practices of the Unification Church are not coercive. These practices not only fail to convert at least 90% of those subjected to them, but actually dissuade the overwhelming proportion. Furthermore, although persons who join the Church remain in an environment plaintiffs' experts would characterize as psychologically manipulative, even most of those initially persuaded to join the Church leave it after a period of months or years. ..
I think this is a rather silly argument. So, if 49 out of 50 people ignore the "Nigerian widower" who sends email begging for help, does that mean there was no misrepresentation for the fiftieth person who fell for the scam hook, line and sinker? Come on!
If someone wants to find "empirical evidence" for coercion I say: "good luck." Try finding "empirical evidence" for love or jealousy and the like. There are some things that simply do not lend themselves to rigid scientific studies. Sorry, I don't buy that line of reasoning at all.