For Individual Users
Take free IQ tests and psychometric assessments. Instantly receive a certificate or request a detailed report for personal insights into your cognitive abilities.
For Professional Users
Access advanced tools and bulk solutions for HR professionals, educators, and researchers. Access tests for your organization and manage analytical reports.
Cognitive Tests
Figurative Sequences
A visual challenge focusing on identifying pattern relationships.
Inductive Reasoning
A series of visual puzzles aimed at testing pattern recognition and logic.
Numerical Sequences
An exercise in detecting number patterns and logical sequences.
Verbal Analogies
A measure of the ability to recognize relationships between words and concepts.
Verbal & Mathematical
An assessment of verbal reasoning and mathematical problem-solving skills.
Advanced Verbal & Mathematical
A more detailed examination of verbal and mathematical competencies.
Verbal Assessment
A focused evaluation of verbal reasoning and language skills.
Vocabulary Ability
An assessment focused on verbal skills and word knowledge.
General Knowledge
An assessment of broad knowledge across multiple domains.
Statistical Tools
-
Cronbach's Alpha Calculator
Assess the reliability of your scale with Cronbach's Alpha coefficient.
-
Guttman's Lambda-6 Calculator
Calculate Lambda-6 reliability for your assessments.
-
Jouve's Randomized Reliability Estimation
Refine test reliability using Jouve’s randomized analysis.
-
Kuder-Richardson's KR-20 Calculator
Measure internal consistency for dichotomous assessments.
-
Simulated IRT Dataset Generator
Create research datasets using Item Response Theory.
-
Spearman-Brown's Prophecy Tool
Adjust test reliability using the Spearman-Brown formula.
-
Tellegen-Briggs Formula 4 Calculator
Use the Tellegen-Briggs Formula for psychometric analysis.
-
Thorndike's Correlation Correction Tool
Correct correlations with Thorndike's range restriction formula.
-
Z-Score Equating Calculator
Standardize scores for comparison with Z-Score Equating.
Featured Articles
About Cogn-IQ
Since its inception in 2010, Cogn-IQ has been a trusted provider of cognitive assessment tools for individuals and professionals alike. Our platform offers a wide array of free, reliable IQ and cognitive potential tests, empowering users to gain insights into their mental abilities. For deeper analysis, we provide affordable, comprehensive individual reports that can be used for personal growth and development.
For clinical professionals, including psychologists and other health care professionals, Cogn-IQ offers advanced, paid assessment solutions designed to aid in diagnostic processes. We also supply researchers with specialized measurement tools that ensure precision and reliability for studies in cognitive sciences and related fields.
Human resources and recruitment professionals benefit from our tailored assessment services, enabling informed hiring decisions and helping to match candidates with roles that align with their cognitive strengths. Whether you're an individual looking for personal insights or a professional seeking robust cognitive evaluation tools, Cogn-IQ is your partner in cognitive assessment and intelligence measurement.
Our Team
-
Xavier
Founder & Head of Research
-
Priya
Assessment Development Enhancer
-
Matthew
Client Relations Gentleman
-
Naomi
Educational Content Scribe
-
Alex
Dev & Tech Wizard
Contact Us
Please choose your user type to proceed: