[求助]could you help me to solve this problem?
Could you help me to solve this problem?
1)In a recent study on the connection between brain abvormalities and violent behavior, the researcher examined more than three hendred people who had engaged in unusually violent behavior toward friends and gamily members. In most of the people studied, the researcher found clues of brain abnormalities, including evidence of past brain injury and physical abnormality. The researcher concluded that evidence of brain abnormalities could be used to predict violent behavior.
Which of the following, if true would most seriously weaken the researcher's conclusion?
A) The incidence of brain abnormalities in the general population is as high as that in the group examined.
B) The brain abnormalities discovered in those studied are of two distinct kinds.
C) A wide variety of violent actions were exhibited by those studied.
D) Those studied in the experiment acted violently toward strangers as well as toward people they knew.
E) The study drew its subjects from a large geographical area.
The right answer is A, and could you tell me Why?[em07][em07] |
