lsat-3-4-17

Let's paraphrase Zelda and Anson's words:

Zelda:  Dr. ladlow is a "psychologist who can derive consistently accurate predictions about how rats will perform in a maze from his theory".  Ladlow concludes that his theory cannot be disproved.

Anson: Then Dr. ladlow is not responsible psychologist.  ... Responsible psychologists always accept the possibility that new evidence will show that their theories are incorrect.

Now you can see that B, "Psychologists who can derive consistently accurate predictions about how rats will perform in a maze from their theories cannot responsibly conclude that those theories cannot be disproved." is a generalization inferred from the paragraph.

Alternatively you can also use "deny test" for this kind of inference question.  Deny a answer choice, see whether the result directly contradicts with the original passage.

1。这是MUST BE TRUE题，就是根据原文，那个选项一定对。B可以看成两部分，对心理学家的描述其实是Z说的心理学家。后面部分其实是A的观点。所以B对

2。建议对MUST BE TRUE题不用DENIAL TEST。DENIAL TEST只在假设题中用。