#biostats
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I wanted to pre-study everything from the whole year, but quickly realized that 2 weeks would be too little for that, so I tried to stick to the first semester, but even then, it's a little bit heavy.
It's all the "non-medical stuff" during semester 1: Biophysics (which includes thermodynamics and I need to spend a lot more time to understand the differences between all those formulas because it is a nightmare), Biostats (which is very okay/easy so far but it's just the begining so I'm keeping my guard), Chemistry (I am super surprised I understood mesomery and even chirality, highschool me would be freaking out) and Biocell/Histology (admittedly the most "medical" one, and the easiest to me so far). Apparently we do some embryology during the first semester, but it's in the same topic as Anatomy so I need to sort which is really anatomy and which is really embryology.
If I don't finish all the studying before entering the year, I think it's fine. Having it in my mind already for a lot of it will absolutely help for the year. I'm so happy to feel rather comfortable with a lot of things that I see already.
I had the opportunity to speak with another person who decided to go to medschool a couple of days ago too, he gave me some advices. He worked so much for it, but we didn't have the same highschool background, and he didn't do as much pre-work as I did. I'm hoping to have an easier time, but I'm targetting a good rank, so we'll see. I figured, if I want to be in the top 10~20 (which is about 16/20 average notes), and end up top 40~50 (about 15.3/20), I'll be pretty happy still.
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I feel like the password to my poipiku posts is so easy. what if I decided to be like that one artist I saw once who put entire algebra problems to solve for the passwords
#the fuck am i saying i cant even do algebra#and somehow i passed biostats#sorry ive been drinking LDNKEFENBFJD
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does anyone else feel like the dumbest person alive or is it just me and myself but after staring at a screen for several hours straight
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math is so fun why am i in medicine again
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one more month and then I'm free to actually work on writing fic for once
#that doesn't mean i will but i will certainly try#maybe i'll finish the current curufinrod one that would be nice#as long as i don't fail my biostats and physiology finals i'll be fine and happy
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literally losing my mind studying biostats rn i hate it!!!!
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hello i sent your worlds specialist fish to my marine biologist friend and his immediate reaction was "my god" "need that as a tattoo" . this isnt asking for tattoo permission i just would like you to know that your worlds specialist fish has fans
this makes me want to cry i'm so glad everyone loves worlds specialist fish. i'm giving permission regardless please let your marine biologist friend know i'm truly so pleased he'd ever consider it as a tattoo
#asks#i drew it in my biostats lecture on a sticky note and wasn't expecting it to get more than like 10 notes.
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truly humbling to look up a math tutorial and see it's listed under pre-algebra
#in my defense gre math doesnt really go above a 10th grade level#and the one math class i took in college was biostats
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I'm so so so so tired and burnt out of schoolwork and the terrible news is im an idiot so. i have to spend 8 hours a day studying when my siblings can stop at reasonable times and do fine. I'm in a hell of my own making 👍
#shut up me#I love getting every biostats problem wrong!! and then looking at the answers and realizing it was simple as shit!!!#and then I still get it wrong! every fucking time!#its my favourite!#I love never getting to draw or do things I like!#I love having my interest for science beaten out of me! I love it so much!!#kill me
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i’m so far out of the loop on that entire tina fey bit i need a translator
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so close...freedom is Right There....
#the good news is this exam is actually only SIXteen hours over two days instead of seventeen like I'd thought#the bad news is that it's split 7 and 9 hours instead of 8 and 8 and the second day starts an hour later#which would be fine except I also have to catch a flight#was hoping to be able to stop by home on the way back and pack but I might have to pack...in advance (shudder)#OH SHOOT I FORGOT THE BIOSTAT REVIEW#I KNEW IT I KNEW THERE WAS SOMETHING I MEANT TO DO TODAY#man this is what you get for spending the first four hours of the day in bed doing nothing#(that is a lie. I was catching up on belated femslash feb stuff)#(but still Nothing Productive)#cannot wait to be done and on the other side of this good lord#imagine actually being able to DO THINGS AGAIN#I know the creativity will not magically turn on like a faucet as soon as this passes but. one can dream.#Cheese's personal molasses#SO many fleeting ideas and SO little power of execution#(except my execution tomorrow ;'D)#hm. should probably go to sleep#but I don't want tomorrow to start yet#okay NOTES TO SELF:#WATCH THE BIOSTAT VIDEOS#cases cases cases cases cases#some mcq if you really want but mostly cases#pack...I guess......#how expensive would it be to briefly rent a trumpet vs. checking in a bag
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im at that stage of my semi-hiatus/studying for a standardized test where im so burnt out i dont gaf anymore like my exams in 1 week to the dot and i canttt be assed to care but i still have so much to finish before i do more practice exams gawqhghshgsh
#my musings#i need tog et through renal#hemeonc#gi#msk ct and derm#and biostats and public healtht ho i imagine that one will take me 5 seconds
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I do want to add that the argument isn’t just about MRIs. The paper argues for the importance of multiple testing corrections, which is relevant in far more science than just imaging analysis. That’s something that can happen in any field in which tests are being performed. The MRI example is just one such case.
This essentially comes down to what we mean when we say statistically significant. If you think back to your science classes, you may remember learning about null and alternate hypotheses when performing an experiment, or designing a test. The idea is that the null is sort of the "default," and our goal with our experiments, much of the time, is see if the null hypothesis is false. You may hear it as "reject the null." Typically, we feel comfortable rejecting the null at p<0.05. This means that there is a 5% chance that any differences we're seeing in our data compared to what we expect is entirely by chance. In other words, it's pretty unlikely that the results we're seeing are by chance, so instead we can think "well, maybe there's an actual difference."
Now, that's great for one test. But let's say we're doing 100 tests. And each one rejects at p<0.05. And let's assume that all of them truly have no difference. Well, based on our cut-off for our p value, on average, we would expect 5 of those 100 tests to reject, even though there is no true difference. This is what's called a false positive, and is a danger whenever we're doing tests like this. There's always a chance that we find an association that isn't real. But, we do our best to try and limit them.
Now back to the dead salmon. As a disclaimer, I don't work with imaging data, so anyone who actually does imaging analysis, feel free to correct me, but as I understand it, when you're looking at MRIs, you're looking at tons and tons of small regions, and looking for associations between them and the stimulus. Essentially, you're doing tons and tons of tests. And if you continue to use the same cut-off of 0.05, you're going to end up with quite a few false positives. Which is what happened in the dead salmon study. If I recall correctly, they found a region with association in the optic area of the fish brain, indicating that the very dead fish can still see things. Which is clearly impossible, since the fish is dead. Instead, what was happening was that a cluster of tests just so happened to be false positives in a way that might make it appear as though there was an association with that region of the brain. And since the fish was dead and should not have any brain activity, that was very clearly a case of false positives.
So, what can we do? Well, multiple testing corrections is essentially a method that can be used to combat this. There are a few different ways to adjust the p-value, or otherwise control how many false positives you get, but the basic idea is that when you're doing many tests, like in the case of MRIs, or other studies like Genome Wide Association Studies, it's very very important to adjust the p-value, so you don't end up with a bunch of false-positives. And any scientists performing multiple tests should be wary of these kinds of results. It's not always as easy to tell as when we're looking for brain activity in a dead fish, but the results can be equally unrealistic.
In summary, please check how many tests you're running and perform multiple testing corrections accordingly, even if you're not working with MRIs. False positives don't care about what field you're in. They come for all.
one of the best academic paper titles
#Tina rambles.#Tina replies to things.#science#And this is why this study won an Ig Nobel#anyway I didn't want to work on my manuscript so this is what I did instead#now back to biostats research
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At this point I think I should just start lying about my masters. Never got it. Since no one wants to give me a fucking job bc of it.
#no job “beneath” the degree trusts me to stay and no job “worthy” of it trusts me for being unemployed for so long#and it isn't the in-demand kind of mph like epi or biostats#so i don't even have that going for me#give me a real albatross around my neck instead of this fucking piece of paper#i'd probably have better luck walking into interviews with a dead bird#snafustuff#negativity cw
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our senior epidemiologist is so intelligent you can tell he knows the field inside and out but god if only that knowledge translated well into his lectures😭
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