Hello,
I have trouble seeing if something is actually required, even after applying the negation test and asking myself if the AC is giving more than is required, or fills the gap and is not actually required. If anything, I tend to see that the Negation Test wrecks the argument more often that I should, and wrongly choose that one thing that seems seemingly unrelated but I thought would wreck the argument.
Ex) Because we locked the door, no one can break into our house
A. Required: there are no other ways to break into the house
B. Required: one cannot break into the house going through the chimney
C. Not required: None of the windows can be opened
D. Not required: The door is the only way in and out of the house, and the lock is impenetrable.
I see why A and B is required. But I don't really see why C are D are not. I can see why D offers information that is extra, "and the lock is impenetrable", but why is C not required? Negation for C: Some of the windows can be opened. Doesn't that wreck the argument? Someone can break in now. What is the difference between C and B?
Another example:
When exercising the muscles in one's back, it is important to maintain a healthy back, to exercise the muscles on opposite sides of the spine equally. After all, balanced muscle development is needed to maintain a healthy back, since the muscles on opposite sides of the spine must pull equally in opposing directions to keep the back in proper alignment and protect the spine.
Which of the following is an assumption required by the argument?
A. Muscles on opposite sides of the spine that are equally well developed will be enough to keep the back in proper alignment.
B. Exercising the muscles on opposite sides of the spine unequally tends to lead to unbalanced muscle development.
Equally exercise muscles->pull in equal directions->healthy back.
I chose A. Negation: Muscles on opposite sides of the spine that are equally well developed WILL NOT be enough to keep the back in proper alignment. I know stating something is important doesn't mean that it alone will be sufficient to produce the outcome, but it seems to wreck the idea that this is important to do (conclusion). I know it's not 100%, but neither is B to me.
I eliminated B immediately glossing over it because we are talking about spines that are exercised equally, not unequally. Negation: Exercising the muscles on opposite sides of the spine unequally DOES NOT tend to lead to unbalanced muscle development. It wrecks the idea that exercising both sides equally is important. Why do I have to exercise both sides of my back equally if when I am exercising them unequally, it doesn't produce unbalanced muscle development anyway? But how is this a better answer that A? If anything I think it is more out of scope than A. We aren't specifically talking about spines that are not exercised unequally or unbalanced muscle development. Yeah, not exercising both sides equally may not produce the outcome of unbalanced muscle development, but I am not trying to avoid unbalanced muscle development, I am trying to fulfill balanced muscle development. What is not necessary to produce an outcome doesn't mean it should be neglected!
I hate "understanding" the questions only after the fact. I want to really understand how to tackle these types of questions.
Does anyone know any tips/tricks/insights that will help with other questions like these onward?
THANK YOU :)
Oh. Normally when we talk about something being "expensive" and then the AC talks about something being cheap, it's wrong because it is out of scope, and there are variations between (expensive, fair, cheap, very cheap). But in this instance, the opposite of unbalanced is balanced. There is nothing in between. Is that why it isn't out of scope? Same for equally/unequally.