Showing posts with label Interesting. Show all posts
Showing posts with label Interesting. Show all posts

Monday, June 2, 2008

Quote for the Day: Dennis Campbell

"Both science and religion share a common human trait or disposition, to seek meaning and patterns when none appear obvious from separate observations or experiences. “Abolishing religion” has the implication of somehow eliminating that normal human disposition that underlies science as well.

One distinct difference between an idealized scientific approach and religion is that science seeks to falsify it’s precepts, concepts or theories, while religion actively avoids such an attempt. For science, falsification is a goal and value; for religion it is a sin that may be punishable by all kinds of nasty happenings.

That suggests that the issue is not the creation of the concepts, scientific or religious, it is in the value conflict of falsification. Science says “question,” and religion says “accept.” In that sense religion is an authoritarian human creation intended among other things for control and constraint of the adherents." - Denis Campbell

So the question is one of Rigor and Critique. Those ideas that can survive the dog-eat-dog existence of peer-review and critique fit within the bounds of 'reason'. Those concepts that forbid or do not stand up to the scrutiny of peer-critique are probably too fragile to be considered 'monumental concepts'.

Wednesday, May 21, 2008

Term of the Day: Dunning-Kruger Effect

The Dunning-Kruger effect is the phenomenon wherein people who have little knowledge tend to think that they know more than they do, while others who have much more knowledge tend to think that they know less. Dunning and Kruger were awarded a 2000 igNobel prize for their work.

Kruger and Dunning noted a number of previous studies which tend to suggest that in skills as diverse as reading comprehension, operating a motor vehicle, and playing chess or tennis, "ignorance more frequently begets confidence than does knowledge" (as Charles Darwin put it). They hypothesized that with a typical skill which humans may possess in greater or lesser degree,

  1. Incompetent individuals tend to overestimate their own level of skill.
  2. Incompetent individuals fail to recognize genuine skill in others.
  3. Incompetent individuals fail to recognize the extremity of their inadequacy.
  4. If they can be trained to substantially improve their own skill level, these individuals can recognize and acknowledge their own previous lack of skill.

They set out to test these hypotheses on human subjects consisting of Cornell undergraduates who were registered in various psychology courses. In a series of studies, Kruger and Dunning examined self-assessment of logical reasoning skills, grammatical skills, and humor. After being shown their test scores, the subjects were again asked to estimate their own rank, whereupon the competent group accurately estimated their rank, while the incompetent group still overestimated their own rank. As Dunning and Kruger noted,

Across four studies, the authors found that participants scoring in the bottom quartile on tests of humour, grammar, and logic grossly overestimated their test performance and ability. Although test scores put them in the 12th percentile, they estimated themselves to be in the 62nd.

Meanwhile, people with true knowledge tended to underestimate their competence. A follow-up study suggests that grossly incompetent students improve both their skill level and their ability to estimate their class rank only after extensive tutoring in the skills they had previously lacked.

http://en.wikipedia.org/wiki/Dunning-Kruger_effect