When you have chosen one of the
tiles, indicate its letter in the Answer box. Pressing
the Next button saves your answer (if any) and takes you to the next question. You
can also enter a question number and jump to it by pressing the Go button.
This will save your answer and take you to the question number you have
selected. There is
a page after question 36 (the Finish page) where you can decide whether to request
your score and finish the test, or to go back and guess at unanswered questions.
Guessing is recommended as
you will not be penalized for wrong answers.
This is a power IQ test -- there is no time limit. Timed IQ tests differentiate
people based on how fast they can get through the test, with most people unable
to finish all the relatively easy questions in time. Instead, a power test has questions
that become increasingly difficult so that almost nobody can get them right at the
This test is closely based on another one concept by concept. That test was standardized
against a Mensa sample. As such, this test will only give exact IQ scores for the
97 to 160 IQ range. (100 is defined as the average IQ for the general population.
High school graduates have an average IQ of 110.) However, the scores being
given now are based on old data. All IQ tests have to be eventually re-standardized
because of generational IQ gains (the Flynn Effect). The restandardizations
almost invariably result in lower IQ scores being assigned for the same raw score.
New data is being collected
to standardize the test and update the corresponding IQ scores. This preliminary
data shows that the test validity is .724 (N = 64), which is in the range of how much
IQ tests usually correlate with each other. According to Bias in Mental Testing
by Jensen (p. 315), "... the correlations among various IQ tests can be said to
be most typically in the range from about +.67 to +.77." The reliability is .832
(Cronbach's Alpha, N = 349). For this type of test, "for normal adults in their
late teens or older, reliability coefficients of .80 to .93 are typical." (p. 214
in Psychological Testing: History, Principles, and Applications 3rd Ed. by R.J. Gregory). Once the standardization
is done, a more detailed report will be posted and IQ score results will be adjusted at no
cost to you.
The fees are in US funds, and payable through credit
card or PayPal.
Test Results: $12.00. Includes a score results page with a personalized link (URL) that you can bookmark, post, or send to your friends. The Results page includes your User Name,
number of questions answered correctly, total number of questions, number of
questions not answered, IQ score, IQ standard deviation, and your percentile rank
with respect to the general population. It also includes a clear and consise explanation of intelligence, IQ tests, IQ scores, and what the related statistics
mean. Note that since online tests are unsupervised,
cannot be used for admission to high IQ societies.
Answers: $9.00. A list of all the questions you got right and wrong and what the correct answers are. No answers will be given for questions
you skip, thus guessing is recommended. Some people
will be quite curious about the answers to these questions, so
at the risk of having answers posted on the Internet (which is strictly prohibited),
we show the answers to people who are willing to pay.
See the confidentiality notice below.
It is still up to you to explain these answers to yourself, although we are considering
offering explanations in the future. If you think this would be a worthwhile
feature, please email us to express your interest.
We will give full refunds if technical problems prevent you from completing
the test, seeing answers, or if there is a gross error on our part.
If you are not sure you want to see the answers, you can still
choose to pay for that options afterwards, at the end of the test.
for the test.
This test is copyrighted and all rights are reserved. The contents of this
test are confidential to prevent cheating. You are prohibited from showing or discussing, in any
form or through any medium, the details of any question, answer, or hint other than
with the people running this website or in possible
exclusive forums set up on this website. One exception is the sample question
given on this
page as it is not part of the scored test.
You are allowed to print out
questions if you prefer to do some pencil and paper figuring. (Tip: use landscape printing). You are also allowed to legitimately discuss the test in
general on the Internet as long as you don't reveal answers, questions, or hints.
You can tell anyone you want about your score and publish links
to your score page if you like.
By agreeing to take the test, you agree that you will pay U.S. $1000 per question,
answer, or hint published if you publish it, or allow it to be published on the Internet or
elsewhere. You also agree and give us permission and authorization
to investigate the leak using
any legal means, including receiving information about you from your
Internet Service Provider. You further agree to pay us for any
expenses we incur in the investigation and legal proceedings, including court costs, if you are found guilty of breaking this confidentiality agreement.
We will not sell, give away, or otherwise impart your personal infomation to other
parties, including your email address, without your consent. We will only email you
about matters related to this test and website. We will take reasonable and
diligent efforts to ensure your information is not stolen from us that could result
in identity theft or other criminal activity. That begins by not asking for
information that we do not strictly need. For example, we will not collect
your address or phone number, bank details, etc. People will not
be able to see your score unless they have your specific URL. All your personal psychological data from optional surveys will be kept strictly confidential and used for scientific enquiry. Any statistics we publish derived from the survey data we collect will
be in aggregate, summary format, and will not have individually identifying information.
This test should work with major browsers. It requires cookies. Firefox is more convenient at the end of the test, but Internet Explorer
can do essentially the same thing with more steps. To avoid scrolling, the minimum screen resolution for this test is 800X600 using the small images and
medium text size or less. To see the whole question
at once you may want to temporarily disable some unnecessary browser bars (see under the View menu). Large images are also available for those with higher resolution screens or for
looking at a picture in more
for the test.
Firefox is recommended as a faster and more secure browser than Internet Explorer
but is not required to do this test.