Free Standardized IQ Tests

Valid, reliable and standardized online IQ tests

The TRI-52 (Test of Inductive Reasoning)
aims at assessing one’s inductive reasoning through culturally fair nonverbal tasks.
The TRI52 is a computerized nonverbal intelligence test designed with 52 figurative items which don’t require acquired knowledge.

Most IQ tests available online are not accurate. They are not scientifically validated and will not give you a meaningful measure of your IQ. The following tests are valid measures of your IQ.

Valid Online IQ Tests

Anders Jensen’s IQ test (‘iqtest.dk’)

This non-verbal IQ test is based on the well known Raven’s Progressive Matrices and measures your fluid intelligence. The IQ test is culture fair - eliminating the effect of cultural factors such as vocabulary, mathematics and general knowledge. The calculation of IQ is based on answers from more than 250,000 people. The test is based on seeing relationships in abstract geometrical shapes. It is an excellent measure of fluid intelligence.

  • Time required: 40 minutes time limit
  • Components of intelligence measured: fluid intelligence
  • Culture fair IQ test? Yes
  • Repeat testing? No
  • Fee: No charge
  • Creator: Anders Jensen, Mensa Denmark

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The TRI-52 (Test of Inductive Reasoning)

This non-verbal IQ test assesses your fluid intelligence (and general IQ) through culture fair nonverbal questions. The TRI52 raw score has demonstrated high validity.

The TRI-52 correlates very highly with the IQ on traditional intelligence tests such as the Wechsler Adult Intelligence Scale III (WAIS-III) Full Scale IQ (.77) or the Slosson Intelligence Test – Revised (SIT-R3) Total Standard Score.

The TRI52 Reasoning Index (RIX) has shown very high correlations with both the Scholastic Aptitude Test I (SAT I) combined score (.75), and the SAT I Mathematical reasoning test scaled score (.84). In the US you can use this test to predict your SAT performance.

  • Time required: No time limit – 52 item test
  • Components of intelligence measured: fluid intelligence
  • Culture fair IQ test? Yes
  • Repeat testing? No
  • Fee: No charge
  • Creator: Xavier Jouve, The Cerebrals Society
  • Special information: Click here to convert your standard score to a percentile. To convert a percentile score to an IQ score (mean 100) click here (using the 15 standard deviation scores).

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What is your IQ? High IQ Pro® Guarantee

High IQ Pro guarantee Money Back Guarantee

You are guaranteed a 10-20 point increase in your true IQ level, and a greater than 40% increase in your short term (working) memory as result of your High IQ Pro® training. In the unlikely event that your working memory capacity or IQ have not increased this much (and we predict much more) you have the right to claim your money back. We will reimburse you immediately. The procedure is as follows:

  • Take one of the above scientifically valid, culture fair IQ tests  to give an accurate measure of your IQ. You can choose which.
  • Do the 20 days of High IQ Pro® training.
  • Take the remaining IQ test or a professionally supervised IQ test of your choice to accurately measure your ‘re-programmed’ IQ level.
  • You are guaranteed a 10-20 point IQ increase.

To understand this IQ gain, read the ‘What Does my IQ Score Mean‘ page

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