Is the CertifiedIQ test reliable?

Yes. Our assessment is based on Raven's Progressive Matrices (RPM), the gold standard for measuring fluid intelligence. We use a database of 1.4M+ certified results and neural networks calibrated monthly by psychologists to ensure high accuracy.

What is the test based on?

The test is built on Raven's Progressive Matrices, a well-validated psychometric framework used in clinical and academic settings worldwide. Our 25 matrix puzzles measure pattern recognition and logical reasoning abilities.

How accurate are the results?

Our AI neural network is calibrated monthly by certified psychologists to ensure the highest accuracy across European demographics. Many users report scores within a few points of their Mensa or clinical assessments.

How is the test scientifically validated?

A specialized team of psychologists and data scientists has trained our own AI to deliver precise, personalized results. The methodology aligns with European psychometric standards and fluid intelligence (Gf) models.

What does the test measure?

The assessment measures fluid intelligence (Gf) through non-verbal visual matrix puzzles. It evaluates your ability to recognize patterns, complete sequences, and apply logical reasoning.

How long does the test take?

The assessment includes 25 questions and typically takes around 15 minutes. There is no time limit per question, so you can think through each puzzle at your own pace.

Are results comparable to other IQ tests?

Yes. Because we use Raven-style matrices, scores are comparable to those from other standardized tests. Many users who have taken Mensa or clinical assessments find their CertifiedIQ result aligns closely.

Is there a time limit per question?

No. You can take as long as you need on each question. This reduces pressure and allows you to perform at your best.

No. It is a professional certification product—not a casual free quiz. See the Pricing section on this page and the dedicated Pricing page for how billing works; full terms are shown before you pay.

Research — IQ Score Chart

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Explore the standardized IQ scale, its normal distribution, and how intelligence scores are categorized and interpreted by psychometric experts. Understand the methodology behind modern IQ tests like the WAIS and Stanford-Binet.

What Does Your IQ Score Mean? A Comprehensive Guide to Intelligence Measurement

Dive into the meaning of IQ scores, how intelligence is measured, and the various IQ scales. Understand the implications of your score for cognitive ability and potential.

Understanding an IQ Score of 130: Characteristics, Implications, and Psychometric Context

An IQ score of 130 places an individual in the 'Very Superior' range, signifying cognitive abilities significantly above the population average. This score is often associated with exceptional academic potential, advanced problem-solving skills, and a strong capacity for abstract thought.

IQ 140 Meaning: Exploring the Very Superior Range of Intelligence

An IQ score of 140 places an individual in the 'Very Superior' range, representing exceptional cognitive abilities significantly above the population average. This score is typically found in approximately 0.3% of the population and indicates a profound capacity for abstract reasoning, complex problem-solving, and advanced learning.

What is a Good IQ Score? Understanding Intelligence Levels and Their Significance

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The IQ Bell Curve Explained: Understanding Intelligence Distribution

Explore the IQ bell curve, a fundamental concept in psychometrics, which illustrates how intelligence scores are distributed across a population. Learn about its statistical basis, interpretation, and implications for understanding cognitive abilities.

The Normal Distribution of Human Intelligence: Understanding IQ Scores

Explore the psychometric principles behind IQ score distribution, including the bell curve, standard deviation, and what various score ranges signify for cognitive abilities.

IQ Classification Chart: Understanding Score Ranges, Percentiles, and Interpretations

Explore the IQ classification chart to understand what different IQ scores mean, their corresponding percentiles, and the psychometric scales used in standardized intelligence tests like the WAIS and Stanford-Binet.

The IQ Percentile Calculator: Interpreting Your Score on the Bell Curve

Explore how an IQ percentile calculator works, understand the psychometric principles behind standardized intelligence tests, and learn to interpret your cognitive abilities relative to the general population.

Understanding the Normal IQ Range: A Comprehensive Psychometric Review

Explore the normal IQ range, typically defined as scores between 85 and 115, encompassing approximately 68% of the population. This article delves into the psychometric principles, cognitive characteristics, and factors influencing scores within this statistically average spectrum.

What Counts as a High IQ Score? Understanding Giftedness and Cognitive Excellence

Explore the psychometric definition of a high IQ score, its percentile rankings, and the cognitive characteristics associated with giftedness. Learn how IQ tests measure cognitive excellence and what these scores mean in real-world contexts.

Understanding Your IQ Results: A Comprehensive Guide to Interpretation

Delve into the precise meaning of your IQ results, learn how scores are derived, and understand the implications across various IQ scales and cognitive domains, all grounded in psychometric science.

IQ Percentile Explained: Understanding Your Cognitive Rank

An IQ percentile indicates the percentage of people whose IQ scores are equal to or lower than a particular score within a normative group. Learn how IQ percentiles are calculated, interpreted, and why they are a crucial metric in psychometric assessment.

IQ Ranking Explained: Understanding Your Cognitive Position

This comprehensive guide explores IQ ranking, detailing how intelligence scores are measured, categorized, and interpreted within the broader context of cognitive ability. Learn about standard deviations, percentile ranks, and the classifications used in psychometric assessments.

IQ and Life Outcomes: Exploring the Predictive Power of Intelligence

Explore the scientific evidence linking IQ to various life outcomes, including educational attainment, occupational success, health, and longevity. This article examines how general intelligence, or 'g', serves as a significant predictor across diverse domains of human experience.

The Science of IQ Testing: Statistics, Development, and Psychometric Rigor

Delve into the statistics of IQ testing, examining the rigorous processes of test construction, norming, and validation that underpin modern intelligence assessments.