136 comments

  • Thursday, Nov 27

    i keep choosing the opposite answer (i.e., answer that weakens the hypothesis in a strengthen question; answer that strengthens the hypothesis in a weaken question). what is wrong with me

    1
  • Thursday, Nov 20

    I picked B at first and then changed my answer to C because the stimulus didn't mentioned bacteria that is present in sewage that is free of heavy metals. I originally thought that we had to make comparisons to things that are mentioned in the stimulus.

    1
  • Saturday, Nov 15

    it's so frustrating choosing the wrong answer bc when i review it and read the explanations, i go "ohhhh" and realize the question wasn't so hard at all

    3
  • Tuesday, Nov 11

    Could I have translated "are generally resistant to neither HM Poisoning nor antibiotics" in Answer Choice B as " aren't generally resistant to HM Poisoning and Antibiotics" since "neither... nor" means "not this and not that"? I think I eliminated Answer Choice B because I didn't click in this grammar and then moved on.

    2
  • Monday, Nov 03

    I definitely picked D

    3
  • Thursday, Oct 30

    Conclusion:

    ^exposure to heavy metal = resistance to antibiotics

    Anticipation to strengthen argument (conclusion):

    ^no exposure to heavy metal = no resistance to antibiotics

    2
  • Tuesday, Oct 14

    This is so confusing!

    4
  • Tuesday, Sep 30

    I am consistently getting these questions wrong (S and W both). Is it just me? I feel so dumb. I am watching the recorded videos on these topics to get a better idea to approach them but there is no improvement. This is so cruel.

    7
  • Monday, Sep 22

    sobbing in the library rn wbu

    15
  • Monday, Aug 18

    See where I went wrong with B was in my head I thought of it as "If there is no heavy metal even present, how are we supposed to prove that the bacterias exposure to the HM promotes their resistance to antibiotics" when I should have looked at it as "No HM, no resistance" = if there is no heavy metal, then there can't be resistance which helps the argument

    9
  • hate when he starts the video with "hopefully you got it right" because i indeed, did not get it right

    24
  • Sunday, Jul 20

    #feedback I don't know if anyone else is experiencing this, but right after I answer a drill and before blind review, I can tell if I got the question right even if the score is blurred out (eg. I can tell between 0% and 100%). Is there a way to fix this - I feel like I am blind reviewing with bias, especially when I know I got the question right.

    3
  • Thursday, Jun 26

    i got this right super quickly and then started over thinking to the point where i gaslit myself into the wrong answer lol

    8
  • Thursday, Jun 19

    Hi! I'm wondering if anyone understands how to identify this question as an experiment? What makes this question different from the other "Strengthening" questions we did earlier before introducing ideal experiments? I'm confused on how I would identify it

    5
  • Saturday, Jun 07

    Seems like there's two tactics for these types of strengthening questions: either rule out an alternative hypothesis or think of the ideal experiment and critique or try to recreate it. Keep getting confused on when to use which though. Anyone have any tips?

    3
  • Sunday, Jun 01

    Have not gotten 1 question right since starting this module lol. This is so discouraging. I just don't get the logic behind the choices here. None of them seem to make sense for what the question stem is asking.

    17
  • Wednesday, May 28

    I think where I went wrong with A was that I misunderstood what A was saying; it is not saying that the less antibiotic resistance you have, the lower the metal concentration. A few problems I have found with it:

    - mentions lower heavy metal resistance, not metal concentration (lower metal resistance doesn't have to imply lower metal concentration where the bacteria are)

    - mentions bacteria in general, not bacteria in sewage (so not very analogous)

     

    Aside from those flaws with this answer choice, would it have strengthened the argument if it was reworded to say, "Most bacteria that survive sewage waste and have weak antibiotic resistance came from sewage waste that does not contain high concentrations of heavy metals?"

    In my mind, this answer choices would be doing something similar to B, which is affirming that the correlation between antibiotic resistance and heavy metal concentration is positive, such that lower levels of metals contribute to lower levels of antibiotic resistance. Although B of course is the better answer as it suggests a controlled experiment with metal concentration as a cause (and not just something correlated with antibiotic resistance).

    1
  • Wednesday, May 28

    i would have thought D and E would weaken the argument. do they?

    -1
  • Wednesday, May 28

    Whenever the questions/answers are explained I understand it and I feel like I made a silly mistake. Regardless I keep getting these strengthening questions wrong. Honestly crashing out. Help.

    1
  • Thursday, May 22

    I think I'm getting it now... This is my understanding but correct me if I'm wrong!

    So for weaken questions - you take the phenomena and replace the conclusion with the facts of the phenomena? You are weakening the argument because you're saying - you got the right idea with the phenomena ... but you came to the wrong conclusion. The correct conclusion will be the answer choice that best connects all parts of the phenomenon.

    For the strengthen questions - your goal is to actually find the weak points of the phenomenon and any gaps in the argument, find the areas that require assumption to connect the conclusion with the phenomena and look for that in the answer choices. Here if you find that weak point or gap and think of it as - you are filling in that gap so you can strengthen the argument and conclusion.

    1
  • Wednesday, May 14

    Hey there are good bacteria too :)

    0
  • Thursday, May 01

    To me, A is trying to confuse contrapositive in causal logic being valid, not entirely irrelevant.

    5
  • Sunday, Apr 27

    anyone else find the strengthen questions harder than weaken??

    24
  • Tuesday, Apr 22

    I keep confusing correlation with causation. I mistook the two as interchangeable concepts because if there is causation present, then there must be some kind of correlation, right?? That's why I chose C bc I thought, oh if A --> B and B --> A are both true, then A and B will almost certainly be correlated, so yeah that strengthens the argument.

    Can someone please point out why my thinking is wrong?

    0
  • Monday, Mar 24

    So, with causal strengthen questions I thought we were looking to deny some alternative hypothesis? What causal hypothesis are we denying here? Are we simply denying the hypothesis that something other than exposure to heavy metals caused the bacteria's resistance to the antibiotics. In other words, is it the case that the right answer will not always explicitly deny an alternative hypothesis, but be more subtle about it like it is in this question?

    Sorry if that's a bad question I just need a little clarification, lol.

    1

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