Rodney
Thu Mar 04 2010, 3:50am
"The trouble with the world is that the stupid are cocksure and the intelligent are full of doubt." Bertrand Russell
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". They hypothesized that:
Incompetent individuals tend to overestimate their own level of skill.
Incompetent individuals fail to recognize genuine skill in others.
Incompetent individuals fail to recognize the extremity of their inadequacy.
If they can be trained to substantially improve their own skill level, these individuals can recognize and acknowledge their own previous lack of skill.
The authors draw an analogy with anosognosia – a condition in which a person who suffers a physical disability due to brain injury seems unaware of or denies the existence of the disability. This may include unawareness of quite dramatic impairments, such as blindness or paralysis.
Kruger and Dunning 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, they 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 humor, 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.
They won Ig Nobel Prizes in Psychology in 2000 with their report, "Unskilled and Unaware of It: How Difficulties in Recognizing One's Own Incompetence Lead to Inflated Self-Assessments".
Source: Wikipedia (http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect)
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". They hypothesized that:
Incompetent individuals tend to overestimate their own level of skill.
Incompetent individuals fail to recognize genuine skill in others.
Incompetent individuals fail to recognize the extremity of their inadequacy.
If they can be trained to substantially improve their own skill level, these individuals can recognize and acknowledge their own previous lack of skill.
The authors draw an analogy with anosognosia – a condition in which a person who suffers a physical disability due to brain injury seems unaware of or denies the existence of the disability. This may include unawareness of quite dramatic impairments, such as blindness or paralysis.
Kruger and Dunning 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, they 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 humor, 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.
They won Ig Nobel Prizes in Psychology in 2000 with their report, "Unskilled and Unaware of It: How Difficulties in Recognizing One's Own Incompetence Lead to Inflated Self-Assessments".
Source: Wikipedia (http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect)