Psychological Research: Crash Course Psychology #2
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- เผยแพร่เมื่อ 31 พ.ค. 2024
- So how do we apply the scientific method to psychological research? Lots of ways, but today Hank talks about case studies, naturalistic observation, surveys and interviews, and experimentation. Also, he covers different kinds of bias in experimentation and how research practices help us avoid them.
Want more videos about psychology? Check out our sister channel SciShow Psych at / scishowpsych !
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Chapters:
Introduction: Intuition & Hindsight Bias 00:00
The Scientific Method 2:05
Case Studies 3:05
Naturalistic Observation 3:48
Surveys and Interviews 4:15
Drawing Conclusions 5:26
Experimentation 6:35
Experiment Time! 7:48
Review 9:54
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So basically:
Hindsight Bias: Hindsight bias is a psychological phenomenon that allows people to convince themselves after an event that they had accurately predicted it before it. Suppose your friend starts eating the pizza that's been in the fridge for the past week and you tell him "week-old pizza cause psychedelic hallucinations" but he eats it anyway and soon start to wig out. You'd say "Dude, I told you so".
But if you are wrong and he's totally fine, you probably won't even think about it ever again. This is known as 'Hindsight Bias" or the "I-Knew-It-All-Along" phenomenon. This doesn't mean the common sense is wrong, it just means that our intuitive sense more easily describes what just happened, than what will happen in the future.
"We also tend to perceive order in random events, which can lead to false assumptions." For example, if you flip a coin five times you have equal chances of getting all tails as you do getting alternating heads and tails. But we see the series of five tails as something unusual, as a streak, and thus giving that result some kind of meaning that it very definitely does not have.
That is why we have the methods and safe-guards of psychological research and experimentation which basically save the study of our minds from the stupidity of our minds like hindsight bias and perceiving order in random events.
Steps of Psychological Research:
Take for example we are researching "Can week-old pizza cause psychedelic hallucinations? Does coffee make you smarter? Or does it just make you do dumb stuff faster?"
-Operationalizing the Questions: Figuring out how to ask general question about your subject and turn them into mesurable & testable propositions.
-Theory & Hypothesis: Any Scientific method starts with a question and a theory is not a hunch like "a quad-shot of espresso makes you think better"). Theory is what explains and organizes lots of different observations and predicts outcomes. And when you come up with a testable prediction, that's your hypothesis.
-Replication is key:
Once your theory and hypothesis are in place, you need a clear and common language to report them with, so for example, defining exactly what you mean by "thinking better" with your espresso hypothesis will allow other researchers to replicate the experiment.
And replication is key.
You can watch a person exhibit a certain behavior once, and it won't prove very much, but if you keep getting consistent results, even as you change subjects or situations, you're probably on to something.
Describing behavior without manipulating it and making connections and predictions from those findings:
Describing Behavior:
-Case Studies:
Case studies take an in-depth look at one individual. They can be misleading because by their nature, they can't be replicated, so they run the risk of over-generalizing.
However case studies are good at showing what can happen and end up framing questions for more extensive and generalizable studies.
They're also often memorable and a great story telling device psychologists use to observe and describe behavior.
For example, say the smell of coffee make someone anxious and irritable doesn't been that it has the same effect on everyone. In fact, the person may have terrible memories associated with that smell, and so his case is actually quite rare.
But you would still have to look at lots of other cases to determine that conclusively.
-Naturalistic Observation:
In naturalistic observation, researchers simply watch behavior in a natural environment. The idea is to let the subjects just do their thing without trying to manipulate or control the situation.
Like case studies, naturalistic observations are great at describing behavior, but they're very limited in explaining it.
-Interviews & Surveys:
Psychologists can also collect behavioral data using surveys or interviews, asking people to report their opinions and behaviors.
While carrying out a surveys it's important
-How you ask:
Surveys are a great way to access consciously held attitudes and beliefs, but how to ask the questions can be tricky; subtle word choices can influence results.
For example more forceful words like "ban" or "censor" may elicit different reactions than "limit" or "not allow".
-Who you ask:
And if how you phrase surveys is important, so is who you ask.
For example the result of asking a room full of students at a pacifist club meeting what they think about arms control, be a representative measure of where students stand, because there's a pretty clear "sampling bias" at work here. To fairly represent a population, a random sample is required where all members of the target group, in this case students, had an equal chance of being selected to answer the question.
So once you've described behavior with surveys, case studies, or naturalistic observation, you can start making sense out of it, and even predict future behavior.
Correlation:
One way to do that is to look at one trait or behavior is related to another, or how they correlate.
Suppose a person thinks that his refrigerator is actually some kind of time machine that can preserve food indefinitely and because he was hungry he ate the leftover pizza that may have had a little bit of fungus on it.
Suddenly, he starts seeing things: green armadillos with laser beam eyes.
From here we could deduce that eating unknown fungus predicts hallucination, that's a correlation.
-Correlation is different to Causation: Correlation is not causation though.
Though it make sense that the hallucinations were result of the questionable fungus, the person may be already on the verge of a psychotic episode and those fuzzy leftovers were actually benign. There there could be an entirely different factor involved, like maybe he hadn't slept in 72 hours, or had an intense migraine coming on, and one of those factors caused his hallucinations.
It's quite tempting to draw conclusions from correlation but it's important to remember that correlations predict the possibility of a cause-and-effect
relationships; they cannot prove them.
So we've talked about "how to describe behavior without manipulating it and how to make connections and predictions from those findings".
Experimentation:
Experimentation really get to the bottom of cause-and-effect behaviors. Experiments allow investigators to isolate different effects by manipulating an independent variable, and keeping all other variables constant, or as constant as you can.
This means that they need at least two groups:
-Experimental Group: which is gonna get messed with.
-Control Group: which is not gonna get messed with.
Just as surveys use random samples, experimental researchers need to randomly assign participants to each group to minimize potential confounding variables, or outside factors that may skew the results.
-Double blind procedure:
Sometimes one or both groups are not informed about what's actually being tested.
For example, researchers can test how substances effect people by comparing their effects to placebos, or inert substances.
And often, the researchers themselves don't know which group is experimental and which is control, so they don't unintentionally influence the results through their own behavior, in which case it's called, you guessed it, a double blind procedure.
So let's put these ideas into practice in our own little experiment.
Let's me and my friend are debating Caffeine's effect on the brain.
Personally, my friend is convinced that coffee helps her focus and think better, but I get all jittery like a caged meerkat and can't focus on anything.
And because we know that overconfidence can lead you to believe things that are not true, we decided to use some critical thinking.
Question: So let's figure out our question: "Do humans solve problems faster when given caffeine?"
Testable prediction: "Adult humans given caffeine will navigate a maze faster than humans not given caffeine."
Independent Variable: The caffeine dosage is your independent variable, the thing that you can change.
Dependent Variable: the thing that depends on the thing that you can change is going to be the speed at which the subject navigates through this giant corn maze.
Experimentation:
Control Group: So the control group gets a placebo, in this case decaf.
Experimental group one: Experimental group one gets a low dose of caffeine, which we'll define at a 100 milligrams; just an eye opener, like, a cup of coffee's worth.
Experimental group two: Experimental group two gets 500 milligrams, more than a quad shot of espresso dunked in a Red Bull.
Once everyone is dosed, we turn them lose in the maze and wait at the other end with a stopwatch to measure the results from the three different groups and compare them to see if there were any conclusive results.
If the highly dosed folks got through it twice as fast as the low dose and the placebo groups, then our hypothesis was correct, and she can rub my face in it saying she was right all along, but really that would just be the warm flush of hindsight bias telling her something she didn't really know until we tested it.
Then, because we've used clear language and defined our parameters, other curious minds can easily replicate this experiment, and we can eventually pool all the data together and have something solid to say about what that americano was doing to your cognition- or at least the speed at which you can run through a maze.
I feel like I just found a gold mine with this channel
YES
Samme
Hard to disagree.
check out kahn academy
+making money god no
Is there someone who really watched this video without any tests tomorrow or whenever?
Nope. Wbu?
Me
I'm watching just for fun/out of curiosity
Muhammad Ibrahim Me cause I want to major in psychology and I like learning
me
Gotta love that hindsight bias, my mother exhibits this A LOT.
parents do that :/ sorry that you're putting up with that.
My parents exhibit almost every bias there is. They think that everyone else is stupid, but they're the exception; that they have all the common sense in the world.
Falcondances by chance do your parents work in technical support? lol
Gureen Turee Haha, sadly no
Falcondances I am one of those that work in technical support and would understand their mentality if they were ;)
These videos are amazingly structured for casual listeners, but they're very difficult to take notes from.
Lucas Trugeda They're better if you watch these before lectures or reading the textbook. Provides the basic framework very well and in some fair detail.
+Lucas Trugeda Slow motion button in the options setting... Slows the sound and allows you to easilly take notes.
Easily Offended Don't Read This... That's not what I meant, that's why I mentioned structure. There's no easy way to schematise the contents of these videos by adding things as they're mentioned; because the video doesn't follow the classical structure of "there are three kinds of x, first there's y, there's also z and finally a. Y is...; Z consists of...; and A is defined by...;"
This structure allows for easy notetaking, but it tends to be incredibly unappealing. The structure of these videos, which is closer to "There's this thing called A, it consists of this and this and this but also this person studied Z and A; A and Z are both in the category of X, anyways A also consists of this and oh also there's something called Y that is also part of X and this other person studied it along with F...", however, with its back and forth between topics, categories, times and persons, allows for easy casual listening, but not schematisation.
This is not a critique, though. Just an observation.
Lucas Trugeda Oh okay, I get what you mean now.
+Lucas Trugeda I dropped Maths for a reason...
wow, I am learning more stuff from a youtube video than the stuff I take in class
where did you find that picture? and what does it mean?
+Jay Jay it is a flamel from full metal alchemist
You aren't the only one. I have a scientific background, but I finished school a long time ago. For instance, I have an MS in psychological counseling. That said, Crash Courses are really good for covering the essentials, even if they don't go into very much depth. They're also fun to watch, which doesn't hurt. Once you have a good grasp of the essentials, it is easier to move to the more complex stuff.
you are not alone.... school is terrible at teaching you most subjects...
HURRAY!
AP students everywhere are flocking to this channel... the views on these videos skyrocket in one day... we all go into the exam with his voice echoing in our minds...
Hi what does AP means?😅😂
he he “advanced placement”, it’s in american schools (and possibly some other countries). you take a difficult course in school then take a national exam in may to get college credit
This is so well written !
@@caroline_slater it's there in a lot of countries, except we don't have classes, but only give the test!
xxgammaray lmfao true dat
grade 10, no phycology classes available.
But on TH-cam? Heck I'll take a crash course!
That sucks. We have one at my school that in currently taking
Camie Neko oh ma goodness me too!
Take a CLEP test
Grade 10, still no English class for you either, apparently...
ME TOO
Sometimes I think he speaks like a mad scientist xD
he is a rapper too
tan komi lol I'm not surprised he sounds like the robot part in that eminem song
Don't forget mad scientists are always the one with genius brains !!
Anyone else watching this because they are genuinely interested in it and not just because they have to?
1:44 "save the study of our minds
from the stupidity of our minds"
Quote-worthy :D
New psychology major, just thought I'd get a head start on things before fall 🤘🏾😭
girl same 😭
I love how he's making my psychology textbook easier to understand
If anyone is here for a school assignment and happens to have the same worksheet as me, here are the answers I got from the video:
1. We tend to perceive order in random events, which can lead to FALSE (1:15) assumptions
2. This is a problem with one popular type of psychological research: CASE STUDIES (3:05), which takes an in-depth look at one individual.
3. Another popular method of psychological research is NATURALISTIC (3:50) observation, where researchers simply watch behavior in a natural environment
4. Psychologists can also collect BEHAVIORAL (4:15) data using surveys or interviews, asking people to report their opinions and behaviors.
5. To fairly represent a population I'd need to get a random sample where all members of the TARGET (5:15) group
6. So once you've described behavior with surveys, case studies, or naturalistic observation, you can start making sense out of it, and even predict future BEHAVIOR (5:25)
7. Experiments allow investigators to isolate different effects by manipulating an independent variable, and keeping all other variables constant, or as constant as you can. This means that they need at least two groups: the EXPERIMENTAL (6:49) group, which is gonna be messed with, and the CONTROL (7:00) group, which is gonna get messed with
8. American Psychological Association suggests that you acquire everyone's informed CONSENT(8:45) to participate
9. What is a Placebo? INERT SUBSTANCES (7:30)
10. What does the video say is probably the best tool that you have for understanding people? SCIENCE (9:50)
Hopefully this ends up helping someone other than myself!
Coming here for the AP psych exam because I took the class last semester and the test is thIS WEEK
What did you do at the test? Was it hard?
marian pula the test was,,, interesting, it wasn’t exactly hard, just some of the things we had to describe were very odd for the situation? It also depends on who you ask cause we didn’t all get the same prompts and stuff but because you could use notes and google and stuff it was much easier
You do NOT have equal chance of getting all tails as you do getting alternating Heads or Tails. There is only 1 possible way of getting All Tails (TTTTT), and 2 possible ways of getting alternating (THTHT or HTHTH). If you merely meant that previous results won't affect future results, you're correct tho.
@Xiaoyu Ji same
Agree
What you describe as "green armadillo with laser beam eyes" is actually a Holomorph from Angetenar. They are shy and seldom materialize near earthlings. However they are strongly attracted by the smell of rotten mozzarella, for reasons only they know.
I think you got it wrong. Holomorphs are attracted by mozzarella, but they despise fungi. It obviously was a Pseudomorph, a creature which is often confused with Holomorphs (hence the name). The time energy released by that time machine must have lured it there. By the way, it is common knowledge that time machines do not work on pizza.
Nah the other variable they forgot to mention - dude took a tab of acid before dozing off on the couch
Zogg from Betelgeuse your channel though
name checks out
"Poor Carl."
IKR SO CUTE THAT WAS.
Now Hank has a book written with one of the main characters by the name Carl!
Hey AP Psych 2019! Let’s all boost our self efficacy and say we’ll ACE this test tomorrow, I believe in y’all!!!
hell yeah!!!! ima walk in with the highest self efficacy
To everyone, how did it go? I'm assuming you already got your scores, not sure. I just started the class online, it's not offered at my school, just trying to get an insight as to how it all works, my teacher actually made an assignment based off this video which is how I ended up here.
@@aribella1004 we dont get our scores until july
@@xXRubyRockzXx oh wow, I saw something in collegeboard about scores for AP exams so i just assumed they were out already
@@aribella1004 Hey can I get study notes for psychology AP or any links where I can find them? your help is appreciated
I’m just watching this cause I’m genuinely interested in psychology and I see all the stressed students in the comments 😂
This video should be distributed to every newspaper and TV news network on the planet as required viewing prior to reporting on science
Am I the only one who pauses in between the introduction is every shots and tries to read them and eventually finds out about hank's trophies and albums?
Shimin Shamim just did that hahahaha
Shimin Shamim just did that hahahaha
+Shimin Shamim I try to do it on each different series.
Callum Burke SAME!
+Shimin Shamim What are you talking about?
I initially thought he was fast too but I just realized that if he was slower, this would be less fun XD
Man, I love this crash course xD
I’m majoring in psychology in univ in Japan. In order to enter the graduate school, I have to pass the test which includes reading psychological articles in English. I have knowledge about psychology to some extent, but very limited vocab and phrases about psychology in English, so this series of videos is so helpful to me :D
I hope you get to do an episode on the placebo effect
I love the saying "Correlation does not imply causation." My English professor used it a lot when talking about fallacy arguments.
Shout out to my professor that are using these videos to explain to us psychology! YA DA MVP!!!! :D
I LOVE the little guy writing notes on the table in front of the brown bottle on the desk at 3:53 - 4:05. so great! Also, these are the best videos ever.
***** YES! The whole naturalistic observation thing!
I literally didn't even notice him lol
Crash course should do one off episodes that are a little longer and explain certain concepts in more detail.
The reason I say this is that this episode would really benefit from a "Statistics for the analysis of experimental results" video that covers averages, variance, sample size, the null hypothesis, and statistical significance.
I was also waiting for him to talk about the presence of Demmand Characteristics (in particular when informed consent is provided) and Ecological Validity in lab experiments.
Jason Wilkins
mathematically, you are twice as likely to have alternating heads and tails, because you have one cycle starting with heads, one cycle starting with tails.
what he meant wasn't stricly alternating, but randomised
for 5 coins there is 32 combinaison possible, each is as likely to occur than another, but if it end on the 2 combinaison "all tails" or "all heads", it seem having a deeper meaning to it, a message of some sort, while in fact it had the same probability as any other
Carmeops for five coins, there are 2 combinations that result in alternating heads/tails. But only one combination that is all tails...
Yeah, but you could think a streak of heads in just as rare as a streak of tails, so it evens out. Good point though.
And just in case since this is a series about psychology I want to point out that every coin toss has an independent chance for head or tails. Also every series is independent. People who get addicted to gambling have a tendency to think that if you toss the coins out over a long period of time and over a multitude of tossing you should close on to average 50/50 on the head or tail. And because of that when they get a series of say many heads in a row they may think that now getting tails is more likely because the coin tossing should close on to average forgetting that every coin toss will still be independent of previous tosses.
I think what he meant is that the result HTHTH has the same chance of showing up than HHHHH or TTTTT or THTHT. The problem is that it wasn't worded clearly.
The second problem is that we humans like to group things together. So HTHTH usually is 3H and 2T. Since there is only one possibility to get this result when H and T alternate every coin flip, it is close enough. But when you don't have the information of the alternation, you suddenly have various possibilites in getting 3H and 2T. However, you still would only have one way in generating 5H, which is why this somehow becomes significant for us, because anyone can throw 3H and 2T, but 5H is something special.
In the end it boils down to the question if order is an important factor to consider or not. When order is important HHHHH is as special as HTHTH. When order is not important 5H is indeed rare.
Goood luck to everyone tomorrow👍
My professor played this for my college psych class and then we had an extensive quiz on it..... It was our first day of class !!!!
So how do we apply the scientific method to psychological research? Lots of ways, but today ***** talks about case studies, naturalistic observation, surveys and interviews, and experimentation. Also he covers different kinds of bias in experimentation and how research practices help us avoid them.
Psychological Research - Crash Course Psychology #2
With Hank Green so clearly elucidating the difference between correlation and causation, I predict no one on the internet will ever conflate the two again.
TheFireflyGrave
Survey says: hahaha
Thank you
***** Ya, and it seems like there are in fact experiments which have shown that coffee might actually improve cognition to some degree in women: onlinelibrary.wiley.com/doi/10.1111/j.1559-1816.2010.00693.x/abstract
Why do all you're examples include pizza or coffee?
So much vocab that i know I feel so smart, Good luck everybody on the AP test tomorrow!!!!!
These crash course videos have helped me through out half of my degree😭 and even better because it's so interactive!! I have ADD so it's very tough for me to pay attention in lectures and these videos (even if I have to watch 20) help me understand
bingeing before the exam
Great crash course. Interesting thoughts on sampling bias!
i wonder why your channel has so little subs
Wetpig Few*
well i dont speak english as a first language
off of the subject but i love how he takes a moment to feel sorry for Carl :3
I don't even have a psychology class I'm just really interested in it and am trying to do as much self study as possible
Why is this hard to take note but easy to listen to?
I absolutely love this channel. I am not a psychology student; I am actually a writer and novelist.
who else loves pausing and reading the funny tidbits in the theme sequence?
I have the AP test in a couple days and your videos are amazing! After I spend a couple hours frying my brain with vocab and practice tests, I listen to your short summary of the section. Very informative.
Nousheen I'm doing the exact same thing lol
i’m supposed to write a 5 page summary on this video that’s due in 4 hours, wish me luck 😅
Poor Carl....I shall give him a small place in the Pantheon. He will be the patron god of protection against coffee accidents.
I wish my teachers were able to explain their classes like these two :').
I am better at history now, I'm even getting interested in other topics!
Thank you so much for the good work!
Me gusta pero deberia pasarlo en castellano.(Español)
I love how you put it all together in this episode at the end. This is only the second episode that I have seen, but I hope I will get a healthy dose of hindsight bias when they all follow this episodes example. Love it
I'm taking online psychology course and this series is super helpful when it comes to explaining and elaborating on things!
So, so , so happy that you chose Psychology as your next subject, Hank! These videos are so useful, and I've even managed to persuade my AP Psych teacher to show these as review tools in class. :) Thank you so much!
I love that you include a recap of what the episode discussed at the very end. It makes it way easier for me to remember, at least easier to remember than John's videos that don't have the little summary at the end. :p
Just wanted to say that I love these series and thank you so much for making them, they are amazingly interesting and are narrated in a great way!
anyone else notice the little guy on the left at about 4:10 watching him while he talked about naturalistic observations?
+the cool dad Yeah. That was fun.
Hi Hank and Crash Course team, thank you for all the work you do to educate and inform us. It is much appreciated!
I can't be the only one cramming for the AP psych exam monday right?
+Rose Books I'm doing the same
+Casa Luttrell Good luck!!
+Rose Books Monday morning cram rn
literally me
me except it's tomorrow and I was introduced this lesson yesterday :D
These videos are incredibly animated and presented as well as having great structure, they're a great help to students like myself who from time to time need some inspiration and these particular videos have fired a passion for psychology that I didn't know i even had. please do as many as possible because I love them so much!
AP EXAM TOMORROW GOTTA CRASH
This makes me think that maybe CC Philosophy would be a fun thing to do after Psychology?
I significantly liked this (P < .05).
Shouldn't it be P > .05?
It' been a while, but I don't think so.
If you set your p level at .05, then its not ignificant if the p level exceeds .05.
Clearly, you think on the wrong side of reality. You need to understand people to make them feel better but if you think and say things to them your own way, you're definitely gonna lose and your reputation will be doomed because you failed to make others feel happy.
DW42536387384 I have no idea what you are talking about or who you are responding to...
You were right by saying p < .05
Reason: "p" is the probability that you'd get the same result if the null hypothesis is true. If the probability of getting the same result when the null hypothesis is true, is less than .05, we can reject the null hypothesis and accept the alternate/experimental hypothesis.
I study Behavioral Sciences which is Psychology, Sociology, Social Psychology,... It's so awesome to hear you say the things I've learned in a new and exciting way. I'm watching your videos while taking notes to repeat the things that I've already learned do I make sure they stay in my head. Thank you for this!
Watched this 7 years ago in AP psych, and am here again in my 2nd doctoral course following a link from a prof. FULL CIRCLE!
Caffeine is a neural inhibitor and a physical stimulant.
If your mind is normally overactive (such as with Asperger's) and thus self-distracting, then coffee _can_ give you focus. But that doesn't mean it _will_ for everyone.
The jitters are from the physical stimulant part.
You can actually end up with both symptoms, or neither... it all depends on the person, quantities, and other variables.
Poor Karl! 😥
lol
Nenny Jenn I criiiii every taym
I love the little jingle in the intro animation to these.
It makes me feel all warm and fuzzy.
This is the first Crash Course video I have seen and I am already in love with this channel and this guy. Very helpful! Very fun!
I know NOTHING about psychology but thanks to this video alone, i can now understand lots of research reports easier now!
Keep up the good work, hank!
Watching all of these before my AP Psych test tomorrow hopefully it helps
sameee girl good luck!
The first two episodes correspond perfectly with chapter one of my psychology textbook. What an awesome way to review!
Did a great job of summarising the most important points. This is really good to get down a general understanding and the basics.
Can you make a physics crash course? Please?
We here all cramming despite what we learned in psychology.
I LOVE LOVE LOVE that you talk so fast. I can get the information efficiently and conveniently without any wasted time. This is the reason I took to online studies as early as my bachelor's - couldn't STAND sitting in a lecture for three hours when I could absorb the information on my own for a fraction of the time. Keep up the speed! :)
My favorite part of TH-cam comments is the rush of people to correct someone else. Which usually leads them to purposely misunderstanding the original point only to be pedantically attacking a meaningless example.
this is the best psychology course i could find, but, it's sooo hard to take notes from this guy😫
Poor Carl.....
Don't worry +Hadrian Augustus will take care of him.
Coffee is bad
AP Virtual Pscy 2020 gang where you at!
Okay seriously go study and stop reading the comments we have an exam in literally 1 hour
😭
😭
I had to replay the clip twice to get to understand all that information but I'm really excited to watch more of these videos to learn more.
This was a helpful refresher, my uni has this video as part of my Psychology course so it's definitely being recognised as a good resource! Thanks Hank and co
who's watching this while on quarantine (or "house arrest" just to be accurate)?
me :/ I got my ap exam tmr
Me because I have an online research method test to answer.
Thank you for this Hank! I have my finals for Psychology tomorrow, and all your videos helped me tremendously!
I'm starting a psychology course next year and this has helped massively so thank you
Now I actually want to see the results of the experiment with coffee and the maze
I'd want to see other experiments that test other aspects of intelligence. Solving a maze is spacial reasoning. How does caffeine affect, say, reading comprehension, mathematics, or creative problem solving?
I love you Hank Green you are definitely the best professor I never had but you are all so the must difficult to notate.
this is helping me prepare for collage entrance exam better than a months of classes dedicated to that did. I'm so freaking glad this channel exists
I appreciate all you do! I use your videos as a wrap up for my classes. Please keep up the great work!
I really enjoy the videos especially when im really interested in psychology and hope to further my studies in this field thx Hank!
So what happened with the coffee, maze experiment?
Was wondering about that lol... it seemed too generalized though so I'm sure it was just an example for the video
this was assigned to watch for my college psychology class, and I love it
Watching these are a fun way to review what I'm learning right now in Psychology (and other subjects). Thanks for making these videos, they are enjoyable to watch.
Hahahaha "saves the study of our minds from the stupidity of our minds" GENIUS, and SO accurate. I'm finishing my psych degree atm, I wish Hank had been my research lecturer :P
Rebecca Rahi
What is the meaning of that...
Saving the study of our mind from the stupidity of mind?
Thank you so much for these! I'm gonna ace my AP Psych Test because of these videos!
I love how you broke down all the concepts
do you have a recommendation of a book that would explain everything about psychological research?
I was having anxiety about my Psychology Methods course because I have to write a paper (yikes), but this made me feel better about it! Thank you!!!
Hank is an ancient god of wisdom and learning who blesses us with his teachings
Just started taking psychology and thought: "why not have a crash course marathon"? It's incredibly interesting and I never get bored, thank you for creating these videos
This was great to study with. The video follows the terms in my text book almost perfectly. This helped me study for the AP test a lot. Thanks crash course!!
Watching this right before taking the AP Psych exam today lmaooo
Honestly, especially for the research method question.
Good luck on the AP Psych test guys!! I believe in us!
maddie good luck to you too!
Watching this the hour before AP Psych Exam and actually got some vital information.
Brilliant series of videos, puts me in the right directions for my course