A theory is defined as an organized set of concepts that explains a phenomenon or set of phenomena

According to the chapter Does TV Violence Sell? about memory of commercial content, in Experiment1

the participants were randomly assigned to (a) watch either a 15 minute sexually explicit or not sexually explicit scene from a movie (b) watch either a 15 minute violent or nonviolent video movie segment (c) self-report their frequency of viewing violent programs or self-report their frequency of viewing nonviolent programs (d) watch either a 15 minute violent or a 15 minute sexually explicit segment from a movie

Sociocultural theorists, such as Cancian, argue that love became feminized (nurturant, supportive) in the United States

a. when the U.S. became industrialized and men began earning a living away from home b. during colonial America with its emphasis on Puritan values c. because of the influence of Christianity d. after the start of the feminist movement