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anonymous

Internal Time: The Science of Chronotypes, Social Jet Lag, and Why You're So Tired | Br... - 0 views

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    "Debunking the social stigma around late risers, or what Einstein has to do with teens' risk for smoking. "Six hours' sleep for a man, seven for a woman, and eight for a fool," Napoleon famously prescribed. (He would have scoffed at Einstein, then, who was known to require ten hours of sleep for optimal performance.) This perceived superiority of those who can get by on less sleep isn't just something Napoleon shared with dictators like Hitler and Stalin, it's an enduring attitude woven into our social norms and expectations, from proverbs about early birds to the basic scheduling structure of education and the workplace. But in Internal Time: Chronotypes, Social Jet Lag, and Why You're So Tired, a fine addition to these 7 essential books on time, German chronobiologist Till Roenneberg demonstrates through a wealth of research that our sleep patterns have little to do with laziness and other such scorned character flaws, and everything to do with biology. In fact, each of us possesses a different chronotype - an internal timing type best defined by your midpoint of sleep, or midsleep, which you can calculate by dividing your average sleep duration by two and adding the resulting number to your average bedtime on free days, meaning days when your sleep and waking times are not dictated by the demands of your work or school schedule. For instance, if you go to bed at 11 P.M. and wake up at 7 A.M., add four hours to 11pm and you get 3 A.M. as your midsleep."
anonymous

Gaming the College Rankings - NYTimes.com - 0 views

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    "Any love-hate relationship must have its share of pain, so the academic world, in its obsession with college rankings, is suitably dismayed by news that an elite college, Claremont McKenna, fudged its numbers in an apparent bid to climb the charts. Claremont McKenna in California is the latest but not the only college to have admitted submitting false information in an effort to win a high rating. Dismayed, but not quite surprised. In fact, several colleges in recent years have been caught gaming the system - in particular, the avidly watched U.S. News & World Report rankings - by twisting the meanings of rules, cherry-picking data or just lying. In one recent example, Iona College in New Rochelle, north of New York City, acknowledged last fall that its employees had lied for years not only about test scores, but also about graduation rates, freshman retention, student-faculty ratio, acceptance rates and alumni giving. Other institutions have found ways to manipulate the data without outright dishonesty. In 2008, Baylor University offered financial rewards to admitted students to retake the SAT in hopes of increasing its average score. Admissions directors say that some colleges delay admission of low-scoring students until January, excluding them from averages for the class admitted in September, while other colleges seek more applications to report a lower percentage of students accepted. Claremont McKenna, according to Robert Morse, the director of data research at U.S. News, is "the highest-ranking school to have to go through this publicly and have to admit to misreporting." This year, U.S. News rated it as the nation's ninth-best liberal arts college. There is no reason to think the U.S. News rankings are rife with misinformation, and the publication makes efforts to police the data, adjust its metrics and close loopholes. But repeated revelations of manipulation show the importance of the rankings in the minds of prospective students, thei
anonymous

Average is Beautiful: A test of Attractiveness | SharpBrains - 1 views

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    Think we all have dif­fer­ent tastes where beauty is con­cerned? Well, cog­ni­tive psy­chol­ogy shows us that an aver­age face (made from sev­eral other faces) is almost always judged as more attrac­tive than its con­stituent faces… Why? It may be for the sim­ple rea­son that an aver­age face is closer to the men­tal idea we have of a pro­to­typ­i­cal face and thus eas­ier for the brain to process. Want to expe­ri­ence it? Fol­low this link to the the Face Research Lab and cre­ate your own aver­age faces. Enjoy.
anonymous

CEOs with top college degrees no better than the average ones - The Economic Times - 0 views

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    A new study has revealed that whether or not a company's CEO holds a college degree from a top school has no bearing on the firm's long-term performance.
anonymous

Face Research » Psychology experiments about preferences for faces and voices - 0 views

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    "FaceResearch.org allows you to participate in short online psychology experiments looking at the traits people find attractive in faces and voices. Register to participate in experiments if this is your first time at FaceResearch.org or login if you have been here before. Make your own average faces with our interactive demos! In addition to participating in facial attractiveness experiments, you can also complete lifestyle and personality questionnaires about characteristics that may be associated with face and voice preferences and see how you compare to others. We post all our study results after we have finished collecting data. You can also learn about our computer-graphic technology and read about some of the findings of our previous studies."
anonymous

Economic View - The Overconfidence Problem in Forecasting - NYTimes.com - 1 views

  • BUSINESSES in nearly every industry were caught off guard by the Great Recession. Few leaders in business — or government, for that matter — seem to have even considered the possibility that an economic downturn of this magnitude could happen.
  • What was wrong with their thinking? These decision-makers may have been betrayed by a flaw that has been documented in hundreds of studies: overconfidence.
    • anonymous
       
      Overconfidence! Emotion blinding one to reality. Hubris is what the Greeks called it. No matter how mathematical the Wall Street Quants (MIT, CalTech graduates who have been hired in huge numbers to write algorithms to figure out the stock market) try to make things, human emotions and personalities will always play a factor in any prediction in economics or any science for that matter.
  • ...4 more annotations...
  • Most of us think that we are “better than average” in most things. We are also “miscalibrated,” meaning that our sense of the probability of events doesn’t line up with reality. When we say we are sure about a certain fact, for example, we may well be right only half the time.
    • anonymous
       
      Hopefully, by now, you see this as a totally TOK paragraph!!!
  • Some economists have questioned whether such experimental findings are relevant in competitive markets. They suggest that students, who often serve as guinea pigs in such tests, are overconfident, but that the top managers in large companies are well calibrated. A recent paper, however, reveals that this hopeful view is itself overconfident.
    • anonymous
       
      Great relevance to this year's TOK Essay Topic #2 "How important are the opinions of experts in the search for knowledge?"
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    "BUSINESSES in nearly every industry were caught off guard by the Great Recession. Few leaders in business - or government, for that matter - seem to have even considered the possibility that an economic downturn of this magnitude could happen. "
anonymous

gladwell dot com - the naked face - 1 views

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    "Many years later, Yarbrough met with a team of psychologists who were conducting training sessions for law enforcement. They sat beside him in a darkened room and showed him a series of videotapes of people who were either lying or telling the truth. He had to say who was doing what. One tape showed people talking about their views on the death penalty and on smoking in public. Another featured a series of nurses who were all talking about a nature film they were supposedly watching, even though some of them were actually watching grisly documentary footage about burn victims and amputees. It may sound as if the tests should have been easy, because we all think we can tell whether someone is lying. But these were not the obvious fibs of a child, or the prevarications of people whose habits and tendencies we know well. These were strangers who were motivated to deceive, and the task of spotting the liars turns out to be fantastically difficult. There is just too much information--words, intonation, gestures, eyes, mouth--and it is impossible to know how the various cues should be weighted, or how to put them all together, and in any case it's all happening so quickly that you can't even follow what you think you ought to follow. The tests have been given to policemen, customs officers, judges, trial lawyers, and psychotherapists, as well as to officers from the F.B.I., the C.I.A., the D.E.A., and the Bureau of Alcohol, Tobacco, and Firearms-- people one would have thought would be good at spotting lies. On average, they score fifty per cent, which is to say that they would have done just as well if they hadn't watched the tapes at all and just guessed. But every now and again-- roughly one time in a thousand--someone scores off the charts. A Texas Ranger named David Maxwell did extremely well, for example, as did an ex-A.T.F. agent named J.J. Newberry, a few therapists, an arbitrator, a vice cop-- and John Yarbrough, which suggests that what happened in Willowbrook
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