Research by Christakis and Fowler (2014) found that people share more DNA with their friends than with strangers. Which of the following conclusions is valid? Having similar
a. genetics causes friendships with certain people.
b. DNA forces us to become friends with certain people.
c. genetics predisposes people to make certain behavioral choices, so that they end up in groups with similar people.
d. DNA makes some people more unattractive.
Question 2
A meta-analysis (Montoya, Horton, & Kirchner, 2008) determined that _____ similarity predicted liking and attraction better than _____ similarity.
a. perceived; actual
b. actual; demographic
c. actual; perceived
d. genetic; perceived