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After this whole debate the only thing I can come up with is a joke that an economical analysis student used as a pick-up line at a lawyer-economist student party to guess if he was talking to an economy or a law student.
"There are 10 kinds of people on this world, those who can count in a binary numeral system and those who don't."
Psychology students shouldn't be considered "smart" at math by definition, therefore the whole study is totally biased. Surely psychology professors had easier access to their own students, but they are far from representing all types of smart people in the world and generalizing based on them is pretty stupid.
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My "spontaneous answer" was that the bat is $1.00. I also knew that I was wrong right away. And then I found out the question was asking how much the ball cost.
Well, the study is also about how we're bad at seeing our own flaws, but much better at seeing other people's flaws, right?
Isn't being able to think of the right answer at all good enough? Maybe someone brilliant, way above the average, can give a correct answer to those questions without thinking about it.
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someone explain the lake problem?
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On June 14 2012 04:04 hzflank wrote:Show nested quote +On June 14 2012 02:49 RageBot wrote:On June 14 2012 01:26 Severedevil wrote: Clearly, IQ imperfectly measures a useful set of mental abilities. Clearly, IQ does not even attempt to measure every useful kind of mental ability.
Which bits you count as 'intelligence' is just semantics. IQ measures potential for learning. The reason that many intelligent people are bad at hard work and have bad social skills is that they never actually had to develop them, since everything comes so easily. And about social skills, when you're extremely intelligent (145IQ+), you are probably smarter than your teachers and know more than them at second grade, you just have problem relating and communicating with other kids. I am going to sound like the arrogant prick that I am: but that's almost the story of my childhood, except that the bad social skills came much later when I just stopped caring  When it came to relating to other kids I learned at around the age of 10 that I should not act intelligent. The real problem is that when success is measured by secondary school grades and you dont even need to show up to lessons to achieve top grades then you believe that you do not need to work to succeed, and that does cause big problems later. I have no idea what my IQ is and I suspect it is significantly lower than that 145, but you really do not need to be intellectually ahead of your peers at a young age.
No... its not what people want to hear but intelligent people would actually be hard working because they know they need to be, i.e they're smart enough to know what needs to be done... Except for a selected few(I don't know any) people famous for being smart have always put in the hard work right before they achieved what made them famous.
On June 14 2012 09:43 Goldbullet wrote: someone explain the lake problem? Think backwards, if it doubles everyday then that means on the 47th day it had to be half the lake. Think exponentially
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On June 14 2012 09:11 Sablar wrote: The study is NOT about how "intelligent" people perform on cognitive bias tests. You yourself pointed this out.
No, the entire point of the study is how people perform on those cognitive bias tests. The authors present no other novel information and this certainly would never have been published if they just surveyed people on the bias blind spot which has already been studied - the point was to examine this in relation to performance on the actual bias tests (which make up a significant section of the paper) and cognitive ability. I never said otherwise, that's the only useful purpose of the entire paper if you accept the results, everything else on cognitive ability (SAT scores, the CRT, and the other cognitive surveys) is worthless data collection alone. It's the only consistent thing between study 1 and study 2 in the paper and the clear point of comparison.
What's not the point or claimed at all in the paper is, "Intelligent people do poorly on these 'trick' math problems." That's not what the study is about and it's not even true, and that is what people on the thread keep misunderstanding. The entire point, however, is about the authors' claims on the bias questions.
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On June 14 2012 09:43 Goldbullet wrote: someone explain the lake problem?
The lily doubles its size every day so it's a * 2^n = 1 where "a" is the original size of the water lily compared to the whole lake which I assumed is 1. This equatation stands for when the whole lake is covered. The question asks how much is n when half the lake is covered which you get by simply dividing both sides of the equatation:
a * 2^n / 2 = 1/2 a * 2^n * 2^(- 1) = 1/2 a * 2^(n-1) = 1/2
as you see, you can get half the size of the lake covered in (n-1) days which is 47 iirc.
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So the point of the paper is that smarter people are less likely to answer this question correctly?
Five times the US budget deficit!
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On June 14 2012 10:10 seg.fault wrote: So the point of the paper is that smarter people are less likely to answer this question correctly?
Five times the US budget deficit!
More to do with lazyness. In China they actually teach you how to do these exact types of question so you wouldn't get the same results for this experiment in China.
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On June 14 2012 09:43 Goldbullet wrote: someone explain the lake problem? Imagine that the lake is 64 square feet in diameter and that it took only 7 days to cover it. Start at 1 1 2 4 8 16 32 64
7 days total. But, the only relevant part is the last two numbers. Since we already know the amount of days the whole process took and the second to last day was half of the whole, subtract 1 from the total amount of days.
Bat and ball problem: x+(x+1.00)=1.10 2x+1.00=1.10 2x=0.10 x=0.05 The ball costs $0.05. To check work, re-insert numbers back into the original problem. Bat costs a dollar more than the ball so the bat costs $1.05. 1.05+0.05=1.10
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Ball is 5?
The first thing that entered my head:
Smart people are often right. If smart people are more often biased, maybe their biases are more often "right"?
Now off to read the article.
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This is very interesting to me. I feel like I suffer from this cognitive bias (in general life settings) and it's always a big deal for me to try and reevaluate my perspective on things.
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I feel really dumb for taking 5 minutes to figure it out.
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If I didn't have to "answer as fast as possible" I might have gotten it right
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I was exposed to both of these questions in my Social Psych class, but didn't fall for either :D
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Wait now... am I super intelligent if I failed those questions or am I super intelligent if I answered those questions correctly? Am I already confirmed stupid if I ask that question? Also, what does this study result in when the testsubjects have a low intelligence?
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Anyone have a link to this paper (no pub-med sub), or at least a copy and paste of the methods section? I'm very weary when it comes to the methods used in psychology or sociology studies, and the inferences they take from the results.
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bat costs a dollar 5 and ball is 5 cents
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On June 13 2012 13:24 MountainDewJunkie wrote: Bat + Ball = 1.1 Bat = Ball + 1 => (Ball +1) + Ball = 1.1 Ball + Ball = .1 2Ball = .1 Ball = .05
Ohhh hmm yet my brain initially screamed "TEN CENTS! But I it's a trap! Better use algebra..."
God youre awesome!
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On June 14 2012 09:50 TrainSamurai wrote:Show nested quote +On June 14 2012 04:04 hzflank wrote:On June 14 2012 02:49 RageBot wrote:On June 14 2012 01:26 Severedevil wrote: Clearly, IQ imperfectly measures a useful set of mental abilities. Clearly, IQ does not even attempt to measure every useful kind of mental ability.
Which bits you count as 'intelligence' is just semantics. IQ measures potential for learning. The reason that many intelligent people are bad at hard work and have bad social skills is that they never actually had to develop them, since everything comes so easily. And about social skills, when you're extremely intelligent (145IQ+), you are probably smarter than your teachers and know more than them at second grade, you just have problem relating and communicating with other kids. I am going to sound like the arrogant prick that I am: but that's almost the story of my childhood, except that the bad social skills came much later when I just stopped caring  When it came to relating to other kids I learned at around the age of 10 that I should not act intelligent. The real problem is that when success is measured by secondary school grades and you dont even need to show up to lessons to achieve top grades then you believe that you do not need to work to succeed, and that does cause big problems later. I have no idea what my IQ is and I suspect it is significantly lower than that 145, but you really do not need to be intellectually ahead of your peers at a young age. No... its not what people want to hear but intelligent people would actually be hard working because they know they need to be, i.e they're smart enough to know what needs to be done... Except for a selected few(I don't know any) people famous for being smart have always put in the hard work right before they achieved what made them famous. No... you do NOT need to be smart in order to know what needs to be done. That does not take intelligence at all.
What you're thinking of is want, motivation. Without it, even the smartest and most capable learner is going to fail.
I would know, story of my life.
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In my experience, less unintelligent people are just as biased as intelligent people.
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