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.

An IQ, or intelligence quotient, is a measure of a person’s mental potential in relation to others. IQ tests are designed so that the average IQ is 100.

Your General IQ Score of 128 shows how able your mind is in general. Anyone with a General IQ Score this high is considered to be of above average intelligence.

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 taking the …

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

Please fill out the form below to send a comment or question to the staff at IQTest.com

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 of your free …

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

From the time of Sir Francis Galton, who judged people's intelligence by their accomplishments, to the present, we've seen many changes in how IQ is determined.