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.
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)
-Materials Engineering (129)
-Chemical Engineering (128)
-Other Engineering (128)
-Mechanical Engineering (126)
Bottom End of Spectrum
-Home Economics (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:
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.
Severe Mental Retardation
Limited ability to communicate, eat, bath, dress and toilet. No academic skills.
Moderate Mental Retardation
Some independent self-help skills and very basic academic skills.
Mild Mental Retardation
Usually able to dress/bath independently and can do simple jobs. Elementary school academics.
May live independently with difficulties. Can perform simple and repetitive jobs.
Can complete vocational education and live independently.
Can complete high school graduation and college with difficulty.
Typical level of college graduates.
Typical level of persons with doctoral degrees.
Capable of understanding highly, complex academic material.
Exception intellectual ability and capable of looking beyond known facts.
Extraordinary talent like Albert Einstein Sources
3. What Is An IQ Test? What Is A High IQ Score?
11. Academic achievement, income, IQ
12. Average IQ of students by college major and gender ratio | Dr. Randal S. Olson