i think a 5 year old would get IQ of 80, unless if he was really some super genius (0.0001% of the population) and get 110 for example.
Othervise, i think you get the smartest around 20-25, thats when you get the full potential.
Those are all visual mathematics questions - so it addresses just that part of your IQ. i think there's like 7 types of IQ right? or just 5... something around that number. The guy from Rainman (Dustin Hoffman .... Raymond Babbitt ) was probably like 180 in logic, but he wasnt a very bright fella .
+Colibri, Administrator of UO Excelsior Shard
Don't know what the purpose of your life is? Well then make something up!
(Old Colibrian proverb)
As a psychologist in training, I can say that this particular "IQ test" speaks to an aspect of what we call "Performance IQ." In fact, it's quite similar to a standardized battery, although who knows how they got these norms. It's likely an estimate based off a standardized version, which is actually only 26 questions.
As for age, yes, it absolutely plays into calculating someone's true IQ score. So, all of our scores here will vary based on our age - given that the test didn't ask for our age, the estimate is likely quite inaccurate. For example, a 15 year old scored 100 on an IQ test, and then got the same number of answers right when they 25, their new IQ (age 25) would likely be around 85-90. This is because IQ tests are scored RELATIVE to your age cohort. So, say I got 20/40 correct, and am age 28, and another person, aged 15, scored 20/40, their IQ would actually be higher than mine. There's fair degree of statistical reasoning behind this.
+Colibri was correct - performance IQ (what this test measures) peaks at age 25-26. Verbal IQ, however, is actually better much later in life, although begins to slowly decline at about 65-70 years of age.
Unrelated, but I wanted to post this anyway: We also have to remember that the "average range" is HUGE. Most people (67%) will score between 70-130. To get to the extremes on either end (less than 20 IQ, greater than 175), you would have to be in the .04 and 99.6 percentile, respectively.