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Old February 12th, 2018, 05:12 PM   #1
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IQ: Ranges, Meaning, and Achievement

IQ: Ranges, Meaning, and Achievement

This Thread is intended to present material on IQ research that will be explored by all members that wish to participate. Arguments both for and against (as well as neutral) are all welcome. If members have further research/findings they would like to present, by all means, please do so--any & all contributions are encouraged.


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Consider, a normal IQ score falls between the range 85-115 which is approximately 70% of the population (and only 15% of people have an IQ of 115 or above), while an extended average IQ range tends to encompass those between 80-119 which is "x"% of the population. In order to qualify for the International High IQ Society, one must have an IQ of 125 or above, while entry into Mensa (a High IQ organization that represents the upper 2% of the population) requires an IQ of 2 standard deviations above average (or 130 and above). For the lower end of the bell curve, this will be explored later on in the post (as well as a more proper breakdown of the rest of the distribution).

Now, what do these numbers mean? That is, in principle, what can one do with a 100 IQ? It turns out, many studies have been done linking average IQ scores to completion of College Majors, SAT scores, and GRE (set aside the problematic elements for a moment, of which we can explore later). As for College Majors, studies have revealed a strong correlation for between those who go far into/complete specific college majors and IQ. The breakdown is as follows:

Top End of Spectrum

-Physics & Astronomy (133)
-Mathematical Sciences (130)
-Philosophy (129)
-Materials Engineering (129)
-Economics (128 )
-Chemical Engineering (128 )
-Other Engineering (128 )
-Mechanical Engineering (126)

Bottom End of Spectrum

-Administration (107)
-Home Economics (106)
-Special (106)
-Student Counseling (105)
-Early Childhood (104)
-Social Work (103)

In order to attend College and be successful, it was found that an IQ of 110-115 is standardly required. Now, if a person with a 110-115 IQ attempted to be a Physics & Astronomy major, it has been found that they would quickly run into trouble and likely have to drop out (or fail out) early on. However, they would be successful at other college majors, some of which were listed previously. Then, an individual with a 100 base IQ has been shown to not (currently) be able to attend college successfully.

To put this in practical terms, lets take the example of those with an IQ 2 standard deviations from the norm in the *adult population* (2% of the population), or Physics & Astronomy combined with Mathematical Sciences Majors (closely followed by Philosophy and certain Engineering Majors, but we will limit our discussion to those past the threshold). This indicates that if we took a random sampling of 100 adults, approximately 2 would have a mind currently capable of the "brain power" necessary to do Complex Analysis or Statistical Mechanics (which is in-line with Senior level Physics or Math major cognitive abilities). As for what a 115 IQ would look like in practical terms, such a person would (currently) struggle tremendously to get a Political Science degree if they were able to attain it at all (IQ 120), while they would be able to get a degree in Business (114), Education (110), ect. See list here for more details: [https://thetab.com/us/2017/04/10/whi...ghest-iq-64811)

Now, IQ links to Standardized Tests such as the SAT and GRE are quite interesting as well--let us proceed with investigating the case of SAT scores. We will use the 1600 score standard (Note: a link to conversions between 2400 to 1600 score standards will be provided under *Sources* if one were curious). Consider, a score of 925 on the SAT (is claimed) to translate to a base 100 IQ. Here is an outline mapping out key points on the Bell Curve:

IQ, SAT, Meaning

- 55, 400, Trainable Moderate Mental Retardation
- 66, 525, Mild Mental Retardation
- 75, 630, Borderline Mental Retardation
- 87, 775, Dull
- 100, 935, Average
- 113, 1100, Bright
- 120, 1200, Very Bright
- 130, 1310, Extremely Bright
- 141, 1445, Briliant
- 151, 1575, Very Brilliant

For convenience, a few figures converted to the 2400 point scale (conversion chart here- [https://blog.prepscholar.com/new-sat...00-to-new-1600) ):

IQ, SAT

- 75, 820
- 87, 1020
- 100, 1260
- 113, 1510
- 120, 1670
- 130, 1840
- 141, 2070
- 151, 2340

[Note: There are various IQ scales, some reach to numbers higher well higher to this, this is a Standard Scale, others could be used with similar (though varying in extent) results]
Follow this link to find an IQ Reference Table which outlines IQ ranges and typical corresponding abilities:

[https://www.easycalculation.com/medi...core-table.php)
Below is a transcription of the outline (IQ range, Category, Typical Ability):

1. 0-24
Profound Mental Retardation
Limited or no ability to communicate, eat, bath, dress and toilet.

2. 25-39
Severe Mental Retardation
Limited ability to communicate, eat, bath, dress and toilet. No academic skills.

3. 40-54
Moderate Mental Retardation
Some independent self-help skills and very basic academic skills.

4. 55-69
Mild Mental Retardation
Usually able to dress/bath independently and can do simple jobs. Elementary school academics.

5. 70-79
Border Line
May live independently with difficulties. Can perform simple and repetitive jobs.

6. 80-89
Low Average
Can complete vocational education and live independently.

7. 90-109
Average
Can complete high school graduation and college with difficulty.

8. 110-119
High Average
Typical level of college graduates.

9. 120-129
Superior
Typical level of persons with doctoral degrees.


10. 130-144
Gifted
Capable of understanding highly, complex academic material.

11. 145-159
Genius
Exception intellectual ability and capable of looking beyond known facts.

12. 160-175
Extraordinary genius
Extraordinary talent like Albert Einstein

Sources

1. www.iqcomparisonsite.com/oldSATIQ.aspx
2. https://www.statisticbrain.com/iq-es...college-major/
3. What Is An IQ Test? What Is A High IQ Score?
4. https://www.123test.com/interpretation-of-an-iq-score/
5. https://pumpkinperson.com/2015/12/16...q-equivalents/
6. https://steemit.com/education/@chhay...is-is-the-case
7. https://thetab.com/us/2017/04/10/whi...ghest-iq-64811
8. https://blog.prepscholar.com/new-sat...00-to-new-1600
9. https://www.easycalculation.com/medi...core-table.php
10. https://www.easycalculation.com/medical/ iq-score-table.php
11. Academic achievement, income, IQ
12. Average IQ of students by college major and gender ratio | Dr. Randal S. Olson
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Old February 13th, 2018, 03:42 AM   #2
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Do you know your IQ?

I've had mine tested several times with the results ranging from a low of 150 to a high of 165.

I disagree with the claim that IQ tests and the concept of IQ in general are not useful. How about you?

Without doubt not every IQ test will produce meaningful results when applied to people regardless of impediments such as a cultural mismatch. Nevertheless, well-designed IQ tests do measure a person's ability to process new knowledge, the speed at which they process new knowledge, and their ability to recognize patterns and the speed at which patterns are recognized.

I think tests so constructed indeed do provide meaningful results.

Last edited by imaginethat; February 13th, 2018 at 03:45 AM.
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Old February 13th, 2018, 05:01 AM   #3
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A young brunette goes into the doctor's office and says that her body hurts wherever she touches it.
"Impossible," says the doctor. "Show me."

She takes her finger and pushes her elbow and screams in agony. She pushes her knee and screams, pushes her ankle and screams and so it goes on, everywhere she touches makes her scream.

The doctor says, "You're not really a brunette, are you?"

She says, "No, I'm really a blonde."

"I thought so," he says. "Your finger is broken."
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Old February 13th, 2018, 05:06 AM   #4
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Quote:
Originally Posted by Clara007 View Post
A young brunette goes into the doctor's office and says that her body hurts wherever she touches it.
"Impossible," says the doctor. "Show me."

She takes her finger and pushes her elbow and screams in agony. She pushes her knee and screams, pushes her ankle and screams and so it goes on, everywhere she touches makes her scream.

The doctor says, "You're not really a brunette, are you?"

She says, "No, I'm really a blonde."

"I thought so," he says. "Your finger is broken."
5. 70-79
Border Line
May live independently with difficulties. Can perform simple and repetitive jobs.

Thanks from RNG and Clara007
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