A Newspaper Reported That Researchers Were Surprised When a New

Multiple Choice

A newspaper reported that researchers were surprised when a new study found no relationship between a certain food and a certain disease, because two previous studies had found a relationship. Which of the following is not likely to explain what happened?

A) The new study had lower power than the other studies, and thus failed to detect a real relationship.
B) The two prior studies each made a Type 2 error.
C) The two prior studies each made a Type 1 error.
D) The new study made a Type 2 error.