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Lawrence Hrubes

Can Writing on a College Entrance Exam Be Properly Assessed? - Room for Debate - NYTime... - 1 views

  • n revamping its SAT test for college admission, the College Board is making the essay portion optional. The written assessment was controversial since it was introduced in 2005, with some college officials expressing little confidence in what it demonstrated or how it was scored. But since an increasing number of college students are taking remedial reading and writing classes, shouldn’t the essay be mandatory? Is the bigger question, how can, or should, writing be judged?
Lawrence Hrubes

Elizabeth Kolbert: When Grownups Take the SAT : The New Yorker - 1 views

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    "Whatever is at the center of the SAT-call it aptitude or assessment or assiduousness or ambition-the exam at this point represents an accident. It was conceived for one purpose, adapted for another, and somewhere along the line it acquired a hold on American life that nobody ever intended."
markfrankel18

Without Language, Large Numbers Don't Add Up : NPR - 0 views

  • A study of people in Nicaragua has concluded that humans need language in order to understand large numbers.
  • He says the brains of all people — and some animals — can tell the difference between, say, two cookies and three cookies on a plate. The human brain is also very good at assessing approximate values, like the difference between 10 and 20 cookies, Casasanto says. But he says the brain needs some sort of counting system to tell the difference between 10 cookies and 11. "What language does is give you a means of linking up our small, exact number abilities with our large, approximate number abilities," Casasanto says. And for people in developed countries, that's essential.
Lawrence Hrubes

What Makes an Alien Intelligent? : The New Yorker - 0 views

  • Herzing’s paper proposes five indicators of intelligence that any given species or machine (she includes artificial intelligence in her assessment) might combine in its own way: first, the size of the subject’s brain (if it has one) relative to the rest of the body; second, the extent to which an entity sends and receives information; third, the degree to which individual members of a species are distinct from one another; fourth, the complexity of the being’s social life; and, fifth, the amount of interaction it has with members of other species. One way to be intelligent is to score high on all five measures, as dolphins do, for instance.
Lawrence Hrubes

Louis C.K. Against the Common Core : The New Yorker - 1 views

  • “Students who already believe they are not as academically successful as their more affluent peers, will further internalize defeat,” Carol Burris, a principal from Rockville Centre, wrote in the Washington Post last summer, calling on policymakers to “re-examine their belief that college readiness is achieved by attaining a score on a test, and its corollary—that is possible to create college readiness score thresholds for eight year olds.” This week, teachers at International High School at Prospect Heights, which serves a population of recently arrived immigrants from non-English-speaking countries, announced that they would not administer an assessment required by the city. A pre-test in the fall “was a traumatic and demoralizing experience for students,” a statement issued by the teachers said. “Many students, after asking for help that teachers were not allowed to give, simply put their heads down for the duration. Some students even cried.”
markfrankel18

Teaching robots right from wrong -- ScienceDaily - 0 views

  • In a project funded by the Office of Naval Research and coordinated under the Multidisciplinary University Research Initiative, scientists will explore the challenges of infusing autonomous robots with a sense for right, wrong, and the consequences of both. "Moral competence can be roughly thought about as the ability to learn, reason with, act upon, and talk about the laws and societal conventions on which humans tend to agree," says principal investigator Matthias Scheutz, professor of computer science at Tufts School of Engineering and director of the Human-Robot Interaction Laboratory (HRI Lab) at Tufts. "The question is whether machines -- or any other artificial system, for that matter -- can emulate and exercise these abilities." One scenario is a battlefield, he says. A robot medic responsible for helping wounded soldiers is ordered to transport urgently needed medication to a nearby field hospital. En route, it encounters a Marine with a fractured leg. Should the robot abort the mission to assist the injured? Will it? If the machine stops, a new set of questions arises. The robot assesses the soldier's physical state and determines that unless it applies traction, internal bleeding in the soldier's thigh could prove fatal. However, applying traction will cause intense pain. Is the robot morally permitted to cause the soldier pain, even if it's for the soldier's well-being?
markfrankel18

The scant science behind anything that claims to boost your brainpower - Quartz - 0 views

  • The team of researchers, led by Madhav Goyal of Johns Hopkins University, examined over eighteen thousand studies that assessed the effects of various types of meditation.
  • Aggregating the results of the 47 studies that met the researchers’ methodological requirements, they measured meditation impact on a litany of stress-related criteria: anxiety, depression, stress and distress, positive mood, mental health-related quality of life, attention, substance use, eating habits, sleep, pain, and weight. Mantra-based programs showed no benefits over and above placebos. + Does that mean that meditation doesn’t work? Not necessarily. Placebo effects are both real and beneficial, and the relaxation that stems from chanting mantras may be therapeutic in and of itself.
  • Furthermore, mindfulness meditation—a variant that stems from the Buddhist tradition and involves fostering a nonjudgmental awareness of the present moment—was found by Goyal’s group to decrease anxiety and depression.
Lawrence Hrubes

We Know How You Feel - 0 views

  • Today, machines seem to get better every day at digesting vast gulps of information—and they remain as emotionally inert as ever. But since the nineteen-nineties a small number of researchers have been working to give computers the capacity to read our feelings and react, in ways that have come to seem startlingly human. Experts on the voice have trained computers to identify deep patterns in vocal pitch, rhythm, and intensity; their software can scan a conversation between a woman and a child and determine if the woman is a mother, whether she is looking the child in the eye, whether she is angry or frustrated or joyful. Other machines can measure sentiment by assessing the arrangement of our words, or by reading our gestures. Still others can do so from facial expressions. Our faces are organs of emotional communication; by some estimates, we transmit more data with our expressions than with what we say, and a few pioneers dedicated to decoding this information have made tremendous progress. Perhaps the most successful is an Egyptian scientist living near Boston, Rana el Kaliouby. Her company, Affectiva, formed in 2009, has been ranked by the business press as one of the country’s fastest-growing startups, and Kaliouby, thirty-six, has been called a “rock star.” There is good money in emotionally responsive machines, it turns out. For Kaliouby, this is no surprise: soon, she is certain, they will be ubiquitous.
Lawrence Hrubes

The Power of Touch - The New Yorker - 0 views

  • At a home in the Romanian city of Iași, Carlson measured cortisol levels in a group of children ranging from two months to three years old. The caregiver-to-child ratio was twenty to one, and most of the children had experienced severe neglect and sensory deprivation. Multiple times a day, Carlson took saliva samples, tracking how cortisol levels fluctuated in response to stressful events. The children, she found, were hormonally off kilter. Under normal conditions, cortisol peaks just before we wake up and then tapers off; in the leagăne infants, it peaked in the afternoon and remained elevated. Those levels, in turn, correlated with faltering performance on numerous cognitive and physical assessments. Then Carlson tried an intervention modelled on the work of Joseph Sparling, a child-development specialist, and the outcomes changed. When half of the orphans received more touching from more caregivers—an increase in hugs, holding, and the making of small adjustments to clothes and hair—their performance markedly improved. They grew bigger, stronger, and more responsive, both cognitively and emotionally, and they reacted better to stress.
  • Touch is the first of the senses to develop in the human infant, and it remains perhaps the most emotionally central throughout our lives. While many researchers have appreciated its power, others have been more circumspect. Writing in 1928, John B. Watson, one of the originators of the behaviorist school of psychology, urged parents to maintain a physical boundary between themselves and their children: “Never hug and kiss them, never let them sit on your lap. If you must, kiss them once on the forehead when they say goodnight. Shake hands with them in the morning. Give them a pat on the head if they have made an extraordinarily good job on a difficult task.” Watson acknowledged that children must be bathed, clothed, and cared for, but he believed that excessive touching—that is, caressing—would create “mawkish” adults. An untouched child, he argued, “enters manhood so bulwarked with stable work and emotional habits that no adversity can quite overwhelm him.” Now we know that, to attain that result, he should have suggested the opposite: touch, as frequent and as caring as possible
  • And yet touch is rarely purely physical. Field’s more recent work has shown that the brain is very good at distinguishing an emotional touch from a similar, but non-emotional, one. A massage chair is not a masseuse. Certain touch receptors exist solely to convey emotion to the brain, rather than sensory information about the external environment. A recent study shows that we can identify other people’s basic emotions based on how they touch us, even when they are separated from us by a curtain. And the emotions that are communicated by touch can go on to shape our behavior. One recent review found that, even if we have no conscious memory of a touch—a hand on the shoulder, say—we may be more likely to agree to a request, respond more (or less) positively to a person or product, or form closer bonds with someone.
Lawrence Hrubes

Most teachers are overlooking huge numbers of gifted black students - Vox - 0 views

  • "In all of my publications I have said that giftedness looks different across cultures," she said. "That means that what these predominantly white teachers are looking for may look different than [for] a person from another culture." She calls this a "cultural mismatch," which can cause teachers to have lower expectations for minority students or misinterpret their behavior. As an example, Ford said a common indicator of giftedness —independence — might not manifest in black students, who tend to have tight-knit and interdependent family structures.
Lawrence Hrubes

Is It Wrong to Watch Football? - Room for Debate - NYTimes.com - 0 views

  • Is It Wrong to Watch Football?
  • His body wrecked at 36, Antwaan Randle El regrets ever playing in the National Football League. After he died of an overdose of pain medication at 27, Tyler Sash was found to have chronic traumatic encephalopathy, the degenerative brain disease believed to be caused by repeated blows to the head. Concussion diagnoses have increased by about a third since the league let independent medical officials assess players. And it seems that with each N.F.L. veteran’s death, another diagnosis of C.T.E. is revealed. How can fans enjoy watching a game that helps ruin players’ lives?
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