An intelligence quotient (IQ) is a total score derived from several standardized tests designed to assess human intelligence. The abbreviation “IQ” was coined by the psychologist William Stern for the German term Intelligenzquotient, his term for a scoring method for intelligence tests at the University of Breslau he advocated in a 1912 book

most people define intelligence as they see it, architects see it and describe it as good architects. Engineers define it as a good engineer, but what really IQ stand for?

1- Intelligence defined differently based on people preferences of an idealistic version of themselves

most people at the individual level define intelligence in their own image, engineers, for example, define it in ways that that more of a future copy of a better version of who they are, someone who achieved significant advancement in there work of field and in short time. artists in other hand define it differently based on their image of who their idles are who represent better artists. Psychologist W. Joel Schneider defines it as a good academic psychologist and he defines intelligence as something that remains ambiguous so that it meets the need of the people who define it.

2- IQ Tests invented to measure what they correlate with not what they measure

the Value of IQ tests are way more than just a simple relation between those measure metrics, IQ Test did not begin as operational definitions of ideas and theories that connect with important outcomes.
some test items can be ignored or not taken correctly because they might have different correlations with outcomes across demographic subgroups, this will make the IQ Tests biased in favor of some group characteristics rather than true value based on the expanses of other groups.

3- Those who scored low in IQ Tests are deemed to struggle in many areas of their lives.

this is also a major false implication of IQ tests as IQ tests are not considered a measure of individual progress through life and it’s not a determination that the individual with low IQ test will fail in life. However, an IQ Score will miss the mark in many individuals, in both directions.

4- did you know that you can be a highly intelligent person and still score poorly on IQ Tests.

yes, it’s true. There are countless ways in which this can occur. young children is a good example of that as they tend to fail to get sustained optimal efforts. (e.g., find a more appropriate test or discontinue testing until optimal effort is again possible). Unfortunately, a single obtuse clinician can do a lot of damage.

5- its fairly common for IQ test to give false results, almost like a fantasy

it is common to sympathize with the human behaviors and their distaste for mechanical decisions

6- when it comes to IQ Tests, there is no better predictor of future learning than past learning

(e.g., working memory tests and processing speed tests). We have reasonably good tests of reasoning ability that does not require specific content knowledge. However, if we think of IQ as prediction devices, there is no better predictor of future learning than past learning. Furthermore, past learning does not just predict future learning—it often enables it.