29 comments

  • Tuesday, Jan 20

    Correlation: = two things move together (not saying one causes the other)

    Causation: = one thing makes the other happen

    Test: If you can say “X happened → made Y happen,” that’s causation. If you can only say “X and Y show up together,” that’s correlation.

    Reminder Trick:

    Correlation = Co-occur Causation = Cause + Effect

    18
  • Thursday, Jan 8

    This is generally good (specifically, the description of confounding is accurate in a way that overview courses often aren't), but misses a few fine points. (1) correlation in the data that is due to chance is not, in fact, a correlation relationship between the phenomena in the real world. So "Chance" is not a valid alternative explanation for a correlation. It's an alternative explanation for an apparent (illusory) correlation. (2) For spurious correlations (real correlations that are not due to a causal relationship), there is much more to it than reverse causality and confounding. Confounding is often thought of as a catch-all, but is a very specific type of spurious correlation. There are others. A crucial one is collider bias, where conditioning on a common downstream effect produces a spurious correlation.

    1
  • Wednesday, Aug 27, 2025

    "c" in this video, in statistics, is called the confounding variable: A variable that influences both a and b independent of each other.

    7
  • Thursday, Jul 10, 2025

    So when I encounter correlation, the common hypotheses should be running through my head before reading AC's?

    4
  • Sunday, May 25, 2025

    do you ever watch a lesson video and then realize you were zoned out the whole time and then have to watch it over again.....

    50
    Tuesday, Jun 10, 2025

    do you ever watch a lesson video and realize you're reading the comments and responding to one instead of watching...

    27
  • Thursday, Apr 10, 2025

    If you have live, I highly recommend the LSAT Course: Causal Reasoning (Foundational). They go over this and give it an acronym CREA. It's really helpful

    9
    Tuesday, Aug 26, 2025

    @smorua1202932 I couldn't find it. Do you know the date it was posted?

    0
    Friday, Sep 5, 2025

    @ktacklesthelsat Causal Reasoning

    0
    Monday, Dec 1, 2025

    @smorua1202932 What does CREA stand for?

    2
  • Thursday, Feb 27, 2025

    Keeping in mind these 4 hypotheses are definitely going to be helpful. I often confuse between 1 and 2 when I assume that A causes B and not the other way around when the phenomenon is common sense. I have to be attentive to what the sentence says and think of these 4 possibilities. It could be a 3rd factor that causes both A and B or there isn't even a causal relationship at all. Guess I gotta train and familiarize :)

    1
  • Wednesday, Jan 15, 2025

    Correlation: Researchers have found that cavities increase with the more glucose they add to rats teeth

    1: Glucose causes cavities

    2: cavities causes glucose presence in teeth

    3: diet caused the high amounts of cavities and glucose

    4: when the study was done on humans, there was no increase in cavities. No causation

    2
    Friday, Feb 28, 2025

    Wouldn't 1 and 2 be switched, as cavities is A and glucose is B

    1
    Thursday, Oct 2, 2025

    @ksh9665264 that's nasty bro, let's get a different example here lol

    0
  • Tuesday, Jan 14, 2025

    H1

    Lung cancer causes people to smoke.

    Opposite of A. I would say something like smoke seems like the remedy or solution to lung cancer.

    H2

    H3

    People want to fit in. People want to be seen as cool. People see media that depicts the bad boy archetype and want to emulate it to be seen in a better light. People also see videos that show the affects and still choose to take a chance with smoking. People end up choosing to smoke might end up with lung cancer but that is not the only way to get lung cancer. Having Lung cancer does not guarantee that you were smoking.

    H4

    0
  • Tuesday, Nov 26, 2024

    What's the expression for hypothesis 4 in lawgic? If no (A →B) is that /A → /B? Is there a A B (strikethrough of →) ?

    0
    Sunday, Dec 15, 2024

    i dont think using the lawgic thing is helpful for correlations or informal logic, and i dont think it fits neatly into an equation. The best i could come up with is

    A -/-> B where the arrow=cause (A does not cause B). in lawgic the arrow meant "is sufficient for" so you kind of have to change some of the tools around.

    3
  • Tuesday, Oct 1, 2024

    lol I'm-a-well-paid-tobacco-industry-lawyer suit :0

    what the value of law industry !

    0
  • Thursday, Aug 8, 2024

    I wonder how I might implement this to explain a correlation that I don't have any knowledge on. The answer here is simple to find because of my knowledge. How will I know which is right on the exam when they use more obscure facts or events.

    Will there be context? Or will it always be a simpler example.

    0
    Thursday, Aug 8, 2024

    Nvm. I pressed next and got my answer. LOL

    0
  • Thursday, Mar 14, 2024

    My "I'm-a-well-paid-tobacco-industry-lawyer suit," tells me Philip did nothing wrong. Coincidences sure are interesting.

    7
  • Thursday, Jan 18, 2024

    https://en.wikipedia.org/wiki/Philip_Morris_USA

    4
  • Thursday, Dec 28, 2023

    I am confused so do we have to choose one "correct" Hypothesis? For Example - Hypothesis 2: B causes A wouldn't be accurate --> Lung Cancer causes people to smoke. Common Sense.. #help

    0
    Thursday, Jan 18, 2024

    I think these are more so strategies to use when we are trying to weaken or strengthen an argument. For example, if we are doing a weakening question, we can see whether one of the Hypotheses explanations can help us weaken the example they are providing.

    4
  • Wednesday, Jun 14, 2023

    Another possibly helpful example that I remember on correlation vs. causation is sales of ice cream and drownings, which have a high correlation. However, obviously there is no causation, as ice cream doesn't cause drownings. Instead, phenomenon C, or hot days, caused an increase in ice cream sales (A), and an increase in swimming, resulting in more drownings, or (B).

    64
    Friday, Oct 20, 2023

    I've heard this example in school, but with NYC ice cream sales and murder rates.

    4
    Thursday, Sep 19, 2024

    I heard this example in stats in college. Great example to show the lesson!

    0
    Tuesday, Jul 25, 2023

    this was helpful, thank you!

    2
    Wednesday, Nov 22, 2023

    My brother is a firefighter, and they were told over the super hot Summer months to be more careful with citizens because the heat just makes people so irritable and unfriendly. Of course, a correlation but notable nonetheless.

    5

Confirm action

Are you sure?