This free, certified IQ Test gives you a real IQ score in just minutes. IQTest.com offers the most scientifically valid & reliable IQ test online.

Instructions for the free IQ Test: Work mentally, without writing. Work quickly, as time is a factor in scoring, but correct answers are more important.

The idea of an intelligence quotient was first suggested by German psychologist, William Stern, in 1912. To compute IQ, Stern divided mental age by the actual, chronological age of the person …

Solving many of the IQ Test’s problems required the ability to add, subtract, multiply, and divide numbers mentally. Many mental tasks require arithmetical operations even though numbers …

You can view your score or Complete Intelligence Profile by logging into your account at IQTest.com with your email address and the password included in the email that informed you …

The IQTest.com Blog includes information on intelligence and IQ testing, and stories about well known geniuses and their varied opinions & accomplishments.

The site determines 13 individual IQ scores for different mental abilities. Here's how the questions are analyzed to produce those scores.

Originally, intelligence testing was used to detect children of lower intelligence in order to place them in special education programs. The first IQ tests were designed to compare a child’s …

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