Our 16-question cognitive assessment evaluates four core reasoning domains: numerical patterns, verbal analogies, logical deduction, and spatial matrix reasoning. Raw scores are calibrated to the familiar 85–145 cognitive index scale modeled on the standard mean-100 / SD-15 Gaussian distribution.
The four cognitive categories measured
Our assessment presents 16 evenly weighted puzzle items across four distinct reasoning categories:
Raw point scores (0 to 16 correct) are converted into a scaled cognitive index on the familiar 85–145 scale using standard normal distribution modeling:
Raw Score (out of 16)
Cognitive Index
Percentile Placement
Classification
16 / 16
142 – 145
99th percentile
Extremely Superior
14 – 15 / 16
130 – 138
98th percentile
Very Superior
12 – 13 / 16
120 – 128
91st – 97th percentile
Superior
10 – 11 / 16
110 – 118
75th – 88th percentile
High Average
8 – 9 / 16
100 – 106
50th – 66th percentile
Average (Median)
6 – 7 / 16
90 – 96
25th – 40th percentile
Average
4 – 5 / 16
85 – 88
16th – 21st percentile
Low Average
How historical figure matching operates
When a user purchases the Detailed or Deep Report, the system evaluates their sub-score distribution across the four categories. The system matches the user's highest relative domain to historical figures whose documented methods relied primarily on those cognitive faculties (e.g. Leonardo da Vinci for pattern recognition, Isaac Newton for deductive logic, Marie Curie for empirical perseverance, and Nikola Tesla for internal spatial simulation).
Explicit limitations and transparency
We maintain full transparency regarding the scope of this test:
Non-Clinical Status: This test is not a diagnostic medical or psychological instrument.
Score Precision: Online baseline assessments provide personal self-insight but cannot replace a comprehensive 2-hour clinical examination by a licensed psychologist.
Researchers, educators, and content publishers may reference this analysis using the citation hyperlink below:
<a href="https://iq-test.icu/methodology" title="https://iq-test.icu/methodology">APEX IQ Test — METHODOLOGY</a>
Discover Your Cognitive Profile
Take the free 16-question cognitive assessment to see your baseline score across four reasoning domains and discover which historical thinker matches your problem-solving style.
