LSAT Question Explanation
PT 108, Section 3, Question 26
DisagreeExplanation
The Anthropologist claims that their assumption was proven true. The Primatologist counters that the logic used to reach that conclusion was unsound, so the assumption may not be true.
Note that the Primatologist doesn't say the assumption is definitely untrue, just that it hasn't been sufficiently proven.
Answer choices
The Anthropologist says they did successfully make the predictions, and the Primatologist never says that this is untrue. They don't disagree about this.
The Anthropologist never talked about bank machines so we have no idea what they would think about this.
The Anthropologist thinks this is true because this was their assumption during the experiment, and they claim that their successful predictions prove the assumption true. The primatologist doesn't say this is definitely untrue, they just say it's not proven true based on the Anthropologist's reasoning. So there's no explicit disagreement about if this is true. One person thinks it's true, the other seems unsure.
They explicitly disagree about this. The Anthropologist claims that their successful predictions prove the assumption true, the Primatologist says that their logic is unsound and does not prove the assumption true.
Neither of them talk about generalizing from the experiment to the behavior of all velvet monkeys.