I found this in a comment on this earlier blogpost, sounds intriguing:
Are you Catholic and over the age of 18? Have you said the Rosary Prayer at least once in the past year? If so, please take part in an anonymous research study online that examines the place of the Rosary Prayer in Catholic individuals’ lives. To participate in this doctoral research study, click the following link: https://www.surveymonkey.com/s/rosaryprayer Participation is anonymous and free of charge.