Huh? With extraterrestrials? What research?
The survey was well designed and the UFO related questions were not very obvious and were merely part of a common Harris type poll. Even UFO researchers were shocked at the numbers represented by the results.
My housemate extrapolated from that--not saying that 3 million probably had sexual encounters but possibly. His logic is as follows.
1. The 3 million abducted would have been from the survey--guessing--20-30 years ago. Abductions have continued. So the total number of abductees is likely 3-6 million at this point. Hard to guess.
2. It is not too far fetched, all things considered, that the percent of those abducted at this point in time who had undergone sexual events in the abduction could easily approach 3 million.
Maybe we will see what's searchable on the net. The main point is that the research was extremely professionally designed, well designed. The figures are likely very solid.
Here's some links from a quick search:
ABDUCTIONS: A report on the Roper poll (1 out of 50 abducted. From 350,000,000 people = 7 million abductees):
http://www.viewzone.com/abduct.html
From above link:
" Who is being abducted? The Roper Organization's previous statistics showed that about one percent of all American adults could be placed into a category they termed "influentials." Influentials were adults, ages 35 to 45, who had higher than average incomes and held positions of political or social authority. They were "trend setters," defining morality and public policy. They were leaders rather than followers. Roper surveys regularly focused on this group for a variety of clients who valued their opinions. The new survey results showed that a surprisingly large number of these "trend setters" seemed to have been abducted."
http://www.alienresistance.org/ufo-alien-deception/recent-polls-trends-belief-aliens-ufos/
http://alien-ufo-sightings.com/2017/03/alien-abductions-dramatically/