saaky001: November 2011 Archives


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After learning about the Big Five during Psychology, I decided I wanted to further investigate the factors and how they affect personality.

The Big Five factors are openness, conscientiousness, extraversion, agreeableness, and neuroticism. Openness to experience measures whether one is curious or cautious. Conscientiousness measures whether one is organized or careless. Extroversion measures whether one is outgoing or reserved. Agreeableness measures whether one is friendly or unkind. Finally, neuroticism measures whether a person is nervous or confident. The Big Five traits measure a wide variety of personality and produce comprehensive results.

The study goes on to show that the Big Five factors are influenced by both hereditary and environmental impacts. Studies which use longitudinal data and correlate people's test scores over time show a high stability with their Big Five percentages. On average levels of extroversion, neuroticism, and openness tend to decrease with time, whereas agreeableness and conscientiousness typically increase. In addition to these group effects, there are individual differences: different people demonstrate unique patterns of change at all stages of life.

Currently testing is being done on non-human beings in order to see if we can use the Big Five factors to separate others by personality. The prime animal they are testing is the chimpanzee.

The biggest concern with the Big Five personality test is that it does not gauge several other categories that describe personality. Will we ever be able to create a test that accurately examines all personality traits and produces labels for the test-takers?

IQ scores

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What exactly is an IQ score? An IQ score is derived from how well a person does on an exam measuring their "intelligence quotient." This exam consists of several different standardized tests and is justified as a scholarly way to gauge intelligence.

Over someone's adulthood, no matter how many times they take the IQ test, their scores are always consistent. This shows that the IQ test is extremely reliable in the sense of test-retest reliability.

IQ scores are associated with many important real-world behaviors outside the classroom and workplace too. They are associated with health-related outcomes including sickness and car accidents. IQ scores are also associated with crime, the lower the IQ score, the higher chance of criminal tendencies. The politics behind IQ scores hold true. There is barely any difference in the IQ scores of men and women. On the other hand, there is a huge difference in IQ scores in the sense of race. White people on average score 15 points more than black people do on IQ tests, but they do show substantial overlap.

The correlation between IQ scores and life achievements remains essentially identical even at extremely high levels of IQ, which doesn't make much sense to me because I feel as though Stephen W. Hawking and Albert Einstein have achieved so much more in their lifetime than a standard employee at a company.

Genetic and environmental influences on IQ are very consistent. Through family studies, IQ scores run fairly consistent, but we don't know whether it's for genetic reasons, environmental reasons, or both. Twin studies on the other hand have strongly suggested genetic influence.

In my opinion, IQ scores can be used to gauge intelligence to an extent. Test taking ability plays a huge role in IQ scores and just because someone gets a lower IQ score than me, I do not consider them any less intelligent than me.

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This page is an archive of recent entries written by saaky001 in November 2011.

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