DrH Wants to Unpackage the Cultural Difference Between Japanese and American

Multiple Choice

Dr.H wants to unpackage the cultural difference between Japanese and American horror movies.What is Dr.H trying to find out?

A) Japanese and Americans' opinions about Japanese and American horror movies
B) what the Japanese think about American horror movies,and vice versa
C) how much statistical power this difference has
D) the underlying reasons for this difference
E) the generalizability of this difference