How Our Assessment Works
We believe you deserve total honesty about how an online cognitive assessment operates. Here is our complete breakdown of question design, our 4-step scoring model, data privacy, and the real limitations of digital screening.
Question Design & Cognitive Domains
Our comprehensive test contains 40 carefully authored questions balanced equally across five core areas of human intelligence:
Logical Reasoning
Deductive chains, categorical syllogisms, conditional statements, and relational inferences that evaluate formal problem structuring.
Numerical Reasoning
Arithmetic sequences, multi-step number progressions, interleaved mathematical rules, and algebraic relationships.
Spatial Reasoning
Mental 2D/3D rotation, geometric perspective shifting, unfolded polyhedron visualization, and reflection symmetry.
Pattern Recognition
Matrix rules, abstract visual transformations, directional shifts, and overlay logic inspired by Raven's Progressive Matrices.
Verbal Reasoning
High-level semantic analogies, classification odd-one-out sets, conceptual abstraction, and nuanced linguistic relationships.
The 4-Step Scoring Algorithm
How your raw question responses translate into a standardized IQ score, percentile rank, and cognitive breakdown:
Raw Score Calculation
Your raw score equals the exact number of questions answered correctly out of 40. No negative marking or point deductions are applied for incorrect choices, ensuring you are not penalized for making an educated guess on difficult items.
Gaussian Normal Distribution Mapping
Raw scores are mapped to IQ estimates using a lookup curve modeled on the Wechsler scale (mean 100, SD 15). The curve is a theoretical model, not a table derived from a norming sample:
Percentile Rank Conversion
Using the cumulative normal distribution, your IQ estimate is converted into a percentile: the share of a normal population (mean 100, SD 15) expected to score lower. It is not a percentile of people who took this test:
Multi-Domain Strength Breakdown
Beyond an aggregate IQ number, each of the 5 domains is calculated as an independent percentage score (0% to 100%). This generates your cognitive radar profile, highlighting whether your reasoning leans toward visual-spatial patterns, numerical logic, or verbal abstraction.
Online Assessment vs. Clinical Testing
To make an informed interpretation of your score, it is vital to understand how digital assessments differ from in-person psychometric batteries like the WAIS-V or Stanford-Binet:
| Dimension | IQ Test Free Online | Clinical Battery (WAIS-V) |
|---|---|---|
| Cost | 100% Free | $500 – $2,500+ |
| Time Required | Up to 25 minutes (15 for the Quick test) | 2 – 3 Hours (often 2 sessions) |
| Administration | Self-administered online | Licensed Clinical Psychologist |
| Tasks Included | Digital pattern, logic & math | Physical block design, oral memory & coding |
| Best Used For | Self-discovery, cognitive practice & baseline | Formal diagnosis, IEP, legal & clinical |
| Privacy & Data | 100% On-device, no registration | HIPAA medical record documentation |
Important Psychometric Limitations
We take scientific integrity seriously. Please read and keep these five points in mind when reviewing any online cognitive result:
Not a Clinical Diagnostic Tool
This assessment is designed as an educational screening and baseline estimate, not a validated medical or psychological diagnostic instrument. It cannot replace a comprehensive evaluation performed by a licensed psychometrician.
Score Variance (±10 to 15 Points)
Cognitive performance fluctuates naturally based on situational factors including fatigue, sleep quality, caffeine, stress, and familiarity with test items. A single session score should be treated as a ballpark indicator rather than a fixed life metric.
Theoretical Normalization
Our scoring model maps raw percentages onto a theoretical normal bell curve with an assumed mean of 100 and standard deviation of 15. It has not been calibrated against an empirically controlled, multi-thousand clinical cohort.
Digital & Screen Constraints
Clinical tests measure hands-on physical manipulation (such as WAIS Block Design) and auditorily paced digit spans. Digital assessments inherently approximate these dimensions through screen-friendly 2D representations.
Not Suitable for Employment or Placement
Do not use this test for hiring decisions, academic gifted program placement, disability determinations, or legal proceedings. Always seek professional evaluation from licensed psychological boards for official certifications.
Data Stored Exclusively on Your Device
We built this platform with a strict privacy-first architecture. When you take a test, your inputs, answers, and scores are processed and stored 100% locally in your browser's localStorage.
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