10 Matching Annotations
  1. Dec 2019
    1. Th ough cautions are oft en expressed [e.g., Plomin, DeFries, McClearn, & Rutter, 1997], the fact that reported biological mothers-adopted children correlations are higher than adoptive mothers-adopted children correlations has had a big impact in psychology and on theories of development. Most usually, the correlations have been computed into heritability

      This does suggest some of the supposed heritability is actually prenatal environment (or some other analogous factor). It's also possible that e.g. mitochondrial DNA plays a bigger role than previously recognized, much how thyroid status is the #1 predictor of mental retardation. Perhaps IVF will shed further light on the issue.

    1. The average IQs of adopted children in lower and higher socioeconomic status (SES) families were 85 (SD = 17) and 98 (SD = 14.6), respectively, at adolescence (mean age = 13.5 years)

      I'm looking for the smallest standard deviation in an adopted sample to compare the average difference to that of identical twins. This study suggests that the SD in adoption is identical to the SD in the general population. This supports the idea that lower SD in adopted identical twins is entirely down to genes (or, in principal, prenatal environment).

      Note that this comment is referring to this Reddit inquiry.

  2. Jan 2019
    1. Curiosity Is as Important as Intelligence

      This one is a pretty bold statement to make, in general.

      Mike Johansson, at Rochester Institute of Technology, makes the case that curiosity is the key to enabling both Creative and Critical Thinking for better problem solving, in general.

      What are some of your ideas?

    2. Although IQ is hard to coach, EQ and CQ can be developed.

      This one is an interesting phrasing -- there's a lot of debate going on about IQ being an outdated metric already.

      For example, N. Taleb is very vocal that IQ simply does not make sense in today's society.

      What do you think? Is IQ overrated?

    1. This means that it is actually easier to measure intelligence than many other psychological constructs. Indeed, some individuals trying to measure other constructs have inadvertently created intelligence tests

      When I learned this, it blew my mind.

    2. Minnesota Transracial Adoption Study

      This is a study begun in the 1970s of African American, interracial, and other minority group children who had been adopted by White families in Minnesota. The 1976 results indicated large IQ boosts (about 12 points) for adopted African American children at age 6, compared to the average IQ for African Americans in general. However, the 1992 report shows that the advantage had faded to about 6 points when the children were aged 17 years. Generally, intelligence experts see this landmark study as supporting both "nature" and "nurture."

    3. the Stanford-Binet intelligence test

      Although the Stanford-Binet is historically important, the Wechsler family of intelligence tests have been more popular since the 1970s.

  3. Nov 2018
    1. To make matters worse, "intelligence" itself is weaponized by the status quo against people of color and white women. That's especially evident in the continuing battles over the interpretation of IQ test results.
  4. Apr 2018
  5. Jan 2018