28 MAY 2015 by ideonexus

 How Scammers Distort Science

So why should you care? People who are desperate for reliable information face a bewildering array of diet guidance—salt is bad, salt is good, protein is good, protein is bad, fat is bad, fat is good—that changes like the weather. But science will figure it out, right? Now that we’re calling obesity an epidemic, funding will flow to the best scientists and all of this noise will die down, leaving us with clear answers to the causes and treatments. Or maybe not. Even the well-funded...
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A case study where a scientist fooled the media, muddying the waters of nutritional information.

26 MAY 2015 by ideonexus

 The Biggest Gains in g

It is one thing if a child’s IQ is elevated over time because she is drilled daily on vocabulary and basic number facts (two of the subtests of major IQ batteries). But Flynn and others have shown that these are not the areas where IQ has risen much. It is in what Flynn refers to as “on-the-spot reasoning” about relations between objects that are either totally familiar to everyone, hence no one can be claimed to have a prior advantage (e.g., arranging familiar pictures so they tell a c...
Folksonomies: intelligence iq g-factor
Folksonomies: intelligence iq g-factor
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26 MAY 2015 by ideonexus

 <em>g</em> Presumes Unidimensionality

 In a multidimensional set of interrelations among tests, one axis can be found that accounts for as much of the interrelatedness as possible, even when it is known that more dimensions are required. The g-men have defined that largest dimension as g. They haven’t discovered it, as they are fond of saying, any more than the Greenwich Meridian was discovered by the International Meridian Conference in 1884. Any set of interrelated tests has to have a largest dimension, so under this d...
Folksonomies: iq measurement
Folksonomies: iq measurement
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26 MAY 2015 by ideonexus

 BIDS Approach to Understanding Intelligence

There is nothing really the matter with the concept of g; it is just that we have misused it by making it the omnipresent concept in our study of cognitive abilities. Intelligence is important on three levels, namely, brain physiology, individual differences, and social trends (collectively, BIDS). The core of a BIDS approach to intelligence is that each of those levels has its own organizing concept, and it is a mistake to impose the architectonic concept of one level on another. We have to ...
Folksonomies: intelligence g-factor
Folksonomies: intelligence g-factor
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Intelligence is a Network of Factors.

26 MAY 2015 by ideonexus

 Internalize the Goal of Seeking Challenging Cognitive Env...

There is one way in which individuals can make their own luck. Internalize the goal of seeking challenging cognitive environments — seek intellectual challenges all the way from choosing the right leisure activities to wanting to marry someone who is intellectually stimulating. The best chance of enjoying enhanced cognitive skills is to fall in love with ideas, or intelligent conversation, or intelligent books, or some intellectual pursuit. If I do that, I create within my own mind a stimul...
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26 MAY 2015 by ideonexus

 Rolling Triggers and Social Multipliers Explain the Flynn...

The most potent facet of our environment is other people. When something, perhaps the popularity basketball got from television, triggered greater participation in basketball, the average performance rose as individuals played more and got better. Initially, a few people learn to shoot with either hand, then others imitate them. The rise in average performance feeds back into a new challenge for each individual. Those who want to excel have to learn to pass with either hand and this spreads a...
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26 MAY 2015 by ideonexus

 Flynn-Dickens Model for IQ Gains

Take those born with genes that make them a bit taller and quicker than average. When they start school, they are likely to be a bit better at basketball. The advantage may be modest but then reciprocal causation between the talent advantage and environment kicks in. Because you are better at basketball, you are likely to enjoy it more and play it more than someone who is bit slow or short or overweight. That makes you better still. Your genetic advantage is upgrading your environment, the am...
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If g-factor is inherited, then how do we explain the Flynn Effect? This model suggests genetic advantages translates into environmental advantage, the environment feeds back to become more challenging.

25 MAY 2015 by ideonexus

 Brains Must Feel Safe for Education

The brain’s main job is prioritizing information relevant to our survival. Anything that suggests the possibility of danger, whether real or imagined, becomes a higher priority than anything else that is going on at that moment. This data is processed first, shifting our attention from cognitive processes down to the faster-acting limbic system, while more complex cerebral operations shut down. Survival always overrides problem-solving, analyzing, remembering, pattern-detection and other ra...
Folksonomies: education whole child
Folksonomies: education whole child
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25 MAY 2015 by ideonexus

 Laura Betzig: Culture

What if the 100,000-odd year-old evidence of human social life—from the arrowheads in South Africa, to the Venus figurines at Dordogne—is the effect of nothing, more or less, but our efforts to become parents? What if the 10,000-odd year-old record of civilization—from the tax accounts at temples in the Near East, to the inscription on a bronze statue in New York Harbor—is the product of nothing, more or less, but our struggle for genetic representation in future generations? [...] ...
Folksonomies: atheism secularism cuture
Folksonomies: atheism secularism cuture
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25 MAY 2015 by ideonexus

 Paul Bloom: Science Can Maximize Our Happiness

How can we determine the happiest society? As Derek Parfit and others have pointed out, even if you can precisely measure the happiness of each individual, this remains a vexingly hard question. Should we choose the society with the highest total happiness? If so, then a trillion people living miserable lives (but not so miserable that they would rather be dead) will be "happier" than a billion immensely happy people. This seems wrong. Do we calculate averages? If so, then a society with a m...
Folksonomies: science happiness
Folksonomies: science happiness
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