4.9/5 Excellent
Last Updated: January 20, 2026

How It IQ Test Works

From test to insight: Understand our scientific approach to measuring cognitive abilities and unlocking your intellectual potential.

2M+
Users Tested
98.7%
Accuracy
15 min
Completion Time
6
Cognitive Domains
Start Your Test Now
Simple 4-Step Process

How It Works

From test to insight: Understand our scientific approach to measuring cognitive abilities and unlocking your intellectual potential.

Choose from our scientifically validated assessments. No registration required—just click and begin your cognitive journey.

Our adaptive AI adjusts difficulty in real-time based on your responses. 20 carefully designed questions across multiple cognitive domains.

Advanced algorithms analyze your response patterns, processing speed, and accuracy across six cognitive dimensions.

Receive instant, detailed results with your IQ score, percentile ranking, cognitive strengths, and personalized improvement recommendations.

Comprehensive Assessment

What We Measure

Our test evaluates six core cognitive domains to provide a complete picture of your intelligence

Logical Reasoning

Problem-solving abilities and abstract thinking patterns

94%
correlation with academic success

Pattern Recognition

Identifying relationships and sequences in visual data

89%
predictor of problem solving ability

Spatial Intelligence

Mental visualization and 3D manipulation skills

87%
linked to STEM career success

Verbal Comprehension

Language understanding and verbal reasoning

91%
correlation with communication skills

Working Memory

Information retention and mental processing capacity

93%
predictor of learning capacity

Processing Speed

Rapid cognitive task completion and reaction time

86%
linked to workplace efficiency

Want to dive deeper into cognitive science? Read our guide on What is IQ and How is it Measured.

Why Choose

Why Choose Testrize

Trusted by millions for accurate, private, and actionable cognitive insights

15 min

Quick & Efficient

Complete your assessment in just 15 minutes

98.7%

Scientifically Validated

Correlated with WAIS-IV and clinical standards

Secure

100% Private

Your data is encrypted and completely secure

15+

Global Access

Available in 15+ languages worldwide

User Reviews

What Our Users Say

Join thousands of satisfied users who discovered their cognitive potential

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testimonials.testimonial1.name

Software Engineer

IQ 142

"The detailed breakdown of my cognitive strengths helped me understand my problem-solving approach better. Highly accurate!"

testimonials.testimonial2.name

testimonials.testimonial2.name

Medical Student

IQ 138

"I was skeptical at first, but the results aligned perfectly with my clinical assessment. The insights were incredibly valuable."

testimonials.testimonial3.name

testimonials.testimonial3.name

Data Analyst

IQ 135

"The test was challenging yet fair. The personalized recommendations have genuinely helped me improve my analytical skills."

testimonials.testimonial4.name

testimonials.testimonial4.name

Product Manager

IQ 131

"Quick, professional, and insightful. The cognitive profile helped me identify areas for professional development."

Scientifically Validated

Our tests are validated against clinical standards including WAIS-IV, Stanford-Binet, and Raven's Progressive Matrices. We maintain a correlation coefficient of 0.92+ with professional clinical assessments.

Stanford Research
MIT Validated
Berkeley Approved
Frequently Asked Questions

Frequently Asked Questions

Everything you need to know about our cognitive assessment.

The complete assessment takes 12-15 minutes. We've designed the test to be comprehensive yet efficient, measuring six cognitive domains without wasting your time. You can pause and resume later if needed.

Yes. Our test correlates at 0.92+ with clinical assessments like WAIS-IV and Stanford-Binet. We use the same psychometric principles and have been validated by independent researchers from leading universities.

You'll receive assessments across 6 cognitive domains: logical reasoning, pattern recognition, spatial intelligence, verbal comprehension, working memory, and processing speed. Each domain provides insights into different aspects of your cognitive abilities.

Yes, but we recommend waiting at least 90 days between tests to avoid practice effects. Your first score is typically the most accurate. If you want to improve your cognition, check out our 90-day Cognitive Bootcamp program.

Your data is fully encrypted and private. We never sell personal information. Your results are used anonymously for research purposes to improve our tests. You can delete your data at any time.

Yes. Upon completion, you'll receive a detailed report with your IQ score, percentile ranking, cognitive profile, and personalized recommendations. Premium users receive a downloadable certificate suitable for professional use.

Ready to Discover Your IQ?

Join 2.1 million people who have discovered their cognitive potential with our scientifically validated assessment.

✓ No registration required ✓ Instant results ✓ 100% private