I'm a psychologist, I've given thousands of IQ tests. These online IQ tests are amusing, but are not valid nor reliable measures of the construct of intelligence. Intelligence is generally thought of a someone's multidimensional problem solving ability (i.e. multiple cognitive and motor-based domains).
IQ tests provide an estimation of intelligence and are not free of error. In other words, they are not the end-all be-all summary of someone's intellectual skills.
Bonafide IQ tests are not perfect, even one that is considered the 'gold standard' in IQ testing (the Wechsler Adult Intelligence Scale). Even this test is highly biased against ethnic minorities such as African Americans and Hispanics. The standardization sample which is the basis of comparison for each person who takes the test included a majority of Caucasian individuals. Simply put, intelligence tests are heavily culture-loaded.
There are also age-related declines and advances in a person's intelligence estimate over time. Intelligence is a flexible construct that requires a fair amount of testing to gain an accurate estimate.
Sadly, 'free and fun' online intelligence tests do not include motor-based tasks which comprise 50% of someone's final IQ score in an actual testing environment.
Some of the IQ categories and their descriptions provided in this thread are horribly outdated and I am ethically obligated to post the correct categories as defined by the Wechsler test. These categories ONLY apply to the Wechsler Adult Intelligence Test (3rd revision).
The Psychological Corporation said:
130 and above......Very Superior
120-129..............Superior
110-119..............High Average
90-109...............Average
80-89.................Low Average
70-79.................Borderline
69 and Below.......Extremely Low
I have not seen any publically available WAIS-III profiles for any of the presidential candidates. Therefore, it is difficult to provide an estimation of intelligence in the absence of data.
In my non-professional and personal opinion, there are also no known "manchurian candidate" IQ tests published in the public domain, so I think McCain is in a class all his own
