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All iq tests are inaccurate. Simply put, they measure what they are designed to measure, How well you are at taking iq tests. Many don't take into consideration critical thinking, social skills, creativity, dexterity, and dozens of other facets that make us who we are. This is the same for the schoolwide standardized testing. At the end of the test they give you a number. All that number tells you is how good you took the test. Not how smart you are, not how good of a person you are, there really hasn't been an effective way to measure those things.
There are many facets of intelligence. I have a friend who can take a car apart and put it back together again. That's intelligence...He probably wouldn't score highly on an IQ test though...
I have another friend who is an amazing musician, hundreds of pieces memorized and played flawlessly. But he probably wouldn't score very highly either.
Most IQ tests and standardized test in general are written by upper middle class white males, so it's no surprise that upper-middle class white males do very well on them. It sucks, and it's biased, and it isn't fair, but this is what the government is going with right now, so we are stuck with it.
All in all, don't pay much attention to test scores. They often don't tell you very much. Add this to stress from testing, biased tests, and data collection error, and it's a wonder that we get any useful information at all from them.
Hope this helps! :-)
I wouldn't trust the internet for that stuff
The tests you are taking are not all created by the same company or individuals. Each test has a certain criteria they are looking at.
You should only take tests a minimum of 30 minutes apart for accuracy. Some of the tests are a bit suspect. From the ones I've taken I'd say the accuracy is +/-10% on a good day, others are wildly inaccurate.
they're not, they're only interested in the offers that you have to sign up for to get your IQ 'score'. Thats how they make money.
I've seen a few that were okay, but they are going to be skewed because there's a certain intelligence it takes to know how to operate a computer.
internet IQ tests are generally within a range of 20 points... this may not seem like a lot, but 20 points is the difference between average and mildly retarded... so they are fun to take, but i wouldn't go bragging to my friends just because i scored a 160 on Ed's internet IQ test
You should take the MENSA IQ test if you want accuracy.
All ON-LINE I.Q. tests are invalid versus what a responder wrote above.
Simply ask what the alpha coefficient is for the test. How are the tests validated? How do they know they are reliable? You will never get answers to these questions.
If you want a valid score (and one that has been normed on many people with cultural and racial backgrounds) look toward the Wecshler or Woodcock-Johnson sets of tests that are administered by a psychologist certified in giving the test and interpreting the test.
They are slightly better than a coin toss. Tests are evaluated in terms of reliability (the consistency with which they measure something) and validity (are they measuring what they are supposed to). On line test are typically neither reliable nor valid. Real, serious IQ tests are a major affair that takes 1-3 hours to give, and a graduate degree in counseling or psychology to be able to interpret.
The standard error of measurement is a way to say that on a good (reliable) test how close your next score will be to the one you just got. Most good IQ tests have a standard error around 1/2 to 1/3 of a standard deviation or about 3-5 points. So if your scores are all over the place, then the test is probably a fun amusement and not worth much.
Ask yourself why folks put these tests on-line? What are they selling? Will it sell better if they can give you a good score? This is called critical thinking, which is not part of IQ, but can also be assessed with a reliable and valid test.
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