quickie experiment ideas

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quickie experiment ideas

Post Post #0 (isolation #0) » Fri Nov 11, 2016 3:28 am

Post by Psyche »

So, I study psychology, especially the cognitive and social stuff. And I've recently come upon quite a bit of funding for my research and at the same time have become adept at running computer based experiments (participant sits at a computer, takes input, responds with their computer) really cheaply and with large sample sizes thanks to learning javascript and how to use Mechanical Turk.

I've sort of been overwhelmed lately by the possibilities that all this presents for me, and wonder if you guys can help me identify some of particular interest. I'd like to field ideas you have for simple, or even complicated experiments people can participate in by sitting at a computer for up to around 30 minutes. If the question they answer is interesting and hasn't been addressed in a better way yet by someone else, then I'll put it together and run it within the week. If it becomes a paper, you'll be acknowledged or even included as an author of the result, depending on your preference and level of contribution.

To give you an idea of how simple an experiment idea can be, let me describe one that's already been done, and only took a few minutes to put together. One experiment presented people several squares with different shades of grey - lighter shades and darker shades. In one condition, they were asked, "Which of these is the best example of the color gray?" In the other condition, "Which of these is the best example of the color grey?". Just the spelling of the word "grey" was changed, and everything else about the experiment left the same. It turns out that people significantly prefer lighter shades for "gray" than they do for "grey". That's an interesting quirk, isn't it?

Now, that's not necessarily a great experiment. It's actually far on the low end of experiments I'd like to do in terms of complication and relevance. But now it's so cheap and easy to run that we can do it anyway. And that's the magic motivating this thread.

I'm not totally optimistic about how much traffic this thread will get, but at the very least it'll be a spot where I can brainstorm ideas for myself. So, whatevs.
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Post Post #2 (isolation #1) » Fri Nov 11, 2016 4:08 am

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"run an experiment that finds out if cat people are dumber than dog people"
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Post Post #3 (isolation #2) » Fri Nov 11, 2016 4:10 am

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"are people less likely to like the color blue if they live further inland"
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Post Post #6 (isolation #3) » Fri Nov 11, 2016 4:40 am

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One thing I study a lot is randomness perception. Explicitly, a lot of people have the mistaken belief that, if something happens more frequently than normal during some period, it will happen less frequently in the future, or that, if something happens less frequently than normal during some period, it will happen more frequently in the future (presumably as a means of balancing nature). And even those who don't subscribe to the gambler's fallacy still exhibit a sort of over-alternation bias. In a series of coin tosses, the likelihood that a Heads will follow a Tails is 50% - that's what a random alternation rate looks like. However, people think that sequences where the alternation rate is more like 55% or even 60% look
more
random than truly random sequences. And no one seems to know for sure why. I'm going to try to survey the literature for hypothetical explanations and think up short experiments that would falsify each of them.
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Post Post #8 (isolation #4) » Fri Nov 11, 2016 4:45 am

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A weird thing is that in a lot of situations, the bias is the exact opposite - they expect a streak to continue instead of ending. For example, suppose a dude named Paul has won a few blackjack hands in a row; a lot of people see he's on a winning streak and expect it to keep going, at least for a while. That's called the "hot hand fallacy" and comes up in lots of contexts where random events correspond to winning or losing.
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Post Post #17 (isolation #5) » Fri Nov 11, 2016 10:24 am

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In post 10, shaft.ed wrote:I thought this was just due to a misunderstanding of what random means in a lay sense. People think random just means 'well mixed
That's one hypothesis. Not clear why a .6 alternation rate sequence would look more well-mixed than a .5 one on average, though.
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Post Post #18 (isolation #6) » Fri Nov 11, 2016 10:26 am

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In post 11, shaft.ed wrote:
In post 3, Psyche wrote:"are people less likely to like the color blue if they live further inland"
i thought there are tribes in Africa that don't perceive the color blue.
But they do have numerous shades of green and are better at perceiving slight differences in green hues

Also isn't blue the last primary color to get 'named' in most languages?
idk man
In post 12, Nahdia wrote:Are people in an annoyed/frustrated state more likely identify with extremist views?
I don't think I can do this online. It's too easy to quit an experiment when it's online. Also they'll review me negatively and I'll have trouble.
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Post Post #19 (isolation #7) » Fri Nov 11, 2016 10:27 am

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In post 13, shaft.ed wrote:effects of procrastination on performance:

Give people a task and tell them it takes most people roughly 10 minutes to complete although inform them they will have to be at the computer station for 30 minutes regardless of if they complete it early.

Give one group access to an internet browser on the computer and not the other.
Mmmmm, this is sort of doable by making the experiment full screen vs not, but in an online context it's hard to keep disengaged participants from using their time efficiently. I could use the honor system, I spose. Or generate some placeholder task for after participants finish? But...
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Post Post #20 (isolation #8) » Fri Nov 11, 2016 10:33 am

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In post 14, Nahdia wrote:(not sure if there's an ethical dilemma with this one. may be difficult to achieve with online respondents) Does offering an impossible to achieve incentive lower overall performance?
For example, give a simple puzzle to solve that's designed to take at least five minutes no matter what. In the experimental group, tell them they'll be compensated extra if they do it in under three.
I'm guessing the incentive condition should be very obviously unachievable. Or I can go along a spectrum, making the condition as low as 1 minute for some partipants and 4 for others. Post-experiment surveys can assure that I'' achieving the desired effect, as you partially noted.

This is an experiment I can do! Only question is whether it's already been done before. I'll check it out.
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Post Post #21 (isolation #9) » Sat Nov 12, 2016 11:32 am

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i wonder what it would mean if i gave people a randomness perception task instructing them to produce/identify patterns typical of concepts related and different from randomness. For example groups may be variously told: "Choose the random sequence", "Choose the well-mixed sequence", "Choose the orderly sequence", "meaningful" and so forth, also including concepts that are variously mistakable for randomness, like "interesting", "checkered", "simple"

argument would be that much research on randomness perception is actually about X

of course i'd have to follow up then with another experiment that evince that human responses are consistently aimed at capturing X instead of randomness

and on the other hand you're left with an unconvincing explanation of cases where people definitely have randomness in mind, such as when they expect a Tails after a series of coin tosses flipping Heads
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Post Post #26 (isolation #10) » Mon Apr 03, 2017 2:37 pm

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had this other idea that might be interesting except i don't have a tight hypothesis/model to test

r/confession is a place where people can make confessions about questionable stuff - admissions to things they think would be popularly condemned by those they care about or themself; each post is labelled "Remorse", "No Regrets", "Conflicted", "Light", "Support Only", or "Tough Love"

i'm interested in the first three of those, because they can be used as a short of quantitative scoring of professed remorse about something someone's did (0 - No Regrets, 1 - Conflicted, 2 - Remorse)

it would be straightforward to do some studies, maybe train a ML classifier, on the content these different kinds of confessions to explore how language varies as people's shame/guilt varies
it could be a window into the psychology of remorse
in the final stage of research, maybe a complete science would be able to measure things like apology sincerity and whatnot
who knows!

the data is kind of messy because the subreddit is expressly for "(1) An acknowledgement or admission of wrongdoing on your part; or (2) a statement admitting that you are personally guilty of a wrongdoing", which posts labeled as "No Regrets" would seem to not even qualify for
it's not clear why people make posts like those to r/confessions, so if i were to do any serious, rather than exploratory research, i'd need to also do some accounting for stuff like this

before i mess with this stuff, i'd like to find some previous models of regret/regret expression so that i can clearly connect the project to past research and test specific and broadly meaningful hypotheses
until i get something like that, this idea will probably idle
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Post Post #30 (isolation #11) » Mon Apr 03, 2017 4:31 pm

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what could the data illustrate about the human mind
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Post Post #37 (isolation #12) » Tue Apr 04, 2017 11:02 am

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it's usually a fallacy people avoid when they have time to think things through
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Post Post #39 (isolation #13) » Fri Apr 07, 2017 6:50 pm

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that would be hard to pull off as a quickie, especially since the tinnitus you specify is undiagnosed
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Post Post #40 (isolation #14) » Fri Apr 07, 2017 7:01 pm

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In post 22, Brandi wrote:I'm pretty bat at wording things so maybe you can understand the idea of my question here:

Are people more or less likely to be discouraged to pursue certain "dream"* fields of work if they are generally thought of as creative ones?

*(As in something someone cares about and wants to do- typically not something like working at mcdonalds)
i like this idea but i wonder how i could turn it into a quickie experiment
i could have one condition where participants are in one condition primed to think a career field they like is creatively involved (maybe we ask them to list some ways the field requires creativity?) and in one condition
not
primed the same way (but maybe as a control have them list ways the field engages the 5 senses), and measure their interest in the field afterward using a likert scale, etc?

if interest is greater in control condition than the priming condition, that would be evidence for the hypothesis

there are probably some kinks in this design to fix, but since it wouldn't take long for a participant to go through the manipulation (like, 5 minutes?), i could probably run an experiment like this pretty cheaply (a little over $20 for n = 40?). Would need to connect the experiment to a body of literature for the experiment to be worthwhile though.

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