Traditional EFT has you tapping with the fingertips of your index finger and middle finger and with only one hand. Either hand works just as well. Most of the tapping points exist on either side of the body, so it doesn't matter which side you use, nor does it matter if you switch sides during the tapping.
(October 2015). The Yale attitude change approach, also known as the Yale attitude change model, is the social psychology study of the conditions under which people are most likely to change their attitudes in response to persuasive messages.
Yale University is an American private Ivy League research university in New Haven, Connecticut. Founded in 1701 in Saybrook Colony as the Collegiate School, the University is the third-oldest institution of higher education in the United States. The school was renamed Yale College in 1718 in recognition of a gift from Elihu Yale, who was governor of the British East India Company.