In parasychological scientific research, an experimental group is a set of people who take the same tests to rate their paranormal ability. This compares with a control group, who are similarly tested and form a base line to compare against the experimental group.
Vote now for your favorite Llewellyn titles for 2026 COVR Awards!
Tarot Journal and Coloring Book, by Jake Baddeley (Book Cover Design)
Wondrous Folk Coloring Book, by Christine Karron (Coloring Books)
A Psychic's Handbook, by Michelle...