Some of the more common types of IQ tests are:
There have been many IQ tests used over the years, and many different proposed scales to evaluate the results. Many tests have been revised and edited in attempts to provide more accurate results. A general outline of this can be found here.
There is, of course, some criticism surrounding the reliabilty of IQ tests...
There are sites like this which quote sources such as Walter Lippmann who said that
"We cannot measure intelligence when we have not defined it" source
There are other studies which suggest that the outcome of an individual IQ test is largely dependent on the motivation of the person taking it. Or at least that individual motivation to succeed introduces a variable into the evaluation process which is not accounted for by those determining results.
The theory of multiple intelligence seems to assert that there are levels of intelligence which are not measured by standardized IQ tests. Howard Garder is quoted as saying:
In the heyday of the psychometric and behaviorist eras, it was generally believed that intelligence was a single entity that was inherited; and that human beings - initially a blank slate - could be trained to learn anything, provided that it was presented in an appropriate way. Nowadays an increasing number of researchers believe precisely the opposite; that there exists a multitude of intelligences, quite independent of each other; that each intelligence has its own strengths and constraints; that the mind is far from unencumbered at birth; and that it is unexpectedly difficult to teach things that go against early 'naive' theories of that challenge the natural lines of force within an intelligence and its matching domains. (Gardner 1993: xxiii)
- Has the term "intelligence" been defined well enough that it can be objectively measured?
- If so, do IQ tests reliably determine an individual's intelligence? Or are they too subjective to be considered accurate?
Is there scientific evidence to support claims of being able to accurately assess individual intelligence as related to real-world outcome.
Or are IQ tests at best a ballpark estimate of individual intelligence?