IQ test
Stanford-Binet
from$19.99
Full test and 12-page report
Basic $19.99, Standard $49.99, Premium $69.99
Free trial first: the first part of the real test
Buy full testTry it freeFree trial on every test
Go inside your brain.
5 science-based tests. Try any of them free.
Choose a test:
Built on the Stanford-Binet scale, Holland’s career types, the four-part model of thinking preferences, Gardner’s multiple intelligences and the DSM-5-TR. Answers are encrypted and never sold.
Science from 22+ countries, in 5 tests.
Scientists, psychologists and specialists from more than 22 countries chose the most trusted tests in research and practice, and brought them together in one place. Every test is updated as new research is published.
- 22+countries of scientists, psychologists and specialists
- 5tests trusted in clinics, schools and research
- Always currentupdated with the latest published research
“Thank you to every scientist, psychologist, doctor and researcher who worked so hard to make these tests possible.”
Farah Y., PhDDirector of Assessment & Psychological Measurement, Inside BrainWhat your full report looks like
Real Inside Brain sample reports with fictional data. Pick a test, then flip through every page.
Page 1 of 6 · Career interest profile
Tap the page to zoom in.
Pricing
Every test has a free trial. Pay once for the full test and your complete report.
Career interests
Holland Code
$39.99
Full test and 6-page report
Free trial first: 12 of 30 questions
Buy full testTry it freeThinking style
Thinking Preferences
$99.00
Full test and 9-page report
Free trial first: 6 of 14 questions
Buy full testTry it freeLearning strengths
Multiple Intelligences
$29.99
Full test and 7-page report
Free trial first: 24 of 80 questions
Buy full testTry it freeAttention (ADHD)
ADHD screening
$29.99
Full test and 4-page report
Free trial first: 6 of 18 questions
Buy full testTry it freeProven science, still used today
Each test follows a framework that psychologists, schools and employers rely on today.
IQ test
Stanford-Binet Intelligence Scales
Its current edition, the SB5, is used by psychologists in schools and clinics to measure reasoning and IQ.
Career interests
Holland’s RIASEC model
The same six types power O*NET, the U.S. Department of Labor’s career database and its Interest Profiler.
Thinking style
The four-part model of thinking preferences
Used in leadership and team training by organizations around the world.
Learning strengths
Gardner’s multiple intelligences
Developed by Howard Gardner at Harvard and used by teachers to plan lessons for different kinds of learners.
Attention (ADHD)
DSM-5-TR symptom criteria
Follows the ADHD symptom groups in the DSM-5-TR, the manual clinicians use today.
Inside Brain is an independent company. It is not affiliated with, or endorsed by, the people and institutions named here.
Questions
What makes these tests scientific?
Each one follows a framework that professionals use today: the Stanford-Binet scales, Holland’s six interest types, the four-part model of thinking preferences, Gardner’s multiple intelligences and the DSM-5-TR symptom groups for ADHD. Your report explains your result in that framework’s terms.
What is the free trial?
Every test starts with a free trial, with no payment and no account. For the Holland Code, Thinking Preferences, Multiple Intelligences and ADHD tests, the free trial is the first questions of the real test (12, 4, 24 and 6), followed by Initial Insights. They are a first look, not your full result: the Holland Code insights do not show your interest type or code, and the ADHD insights show no scores or screening level. For the Stanford-Binet, it is the first questions of the real test (up to 8, from the right starting point for your age), followed by Initial Insights with no IQ score, percentile or classification. Every free trial is less precise than the full test.
What do I get when I buy the full test?
The full test uses every question and scores every scale. You get your complete report as soon as you finish, between 4 and 12 pages depending on the test, which you can read online or download as a PDF.
Are the four pieces real parts of the brain?
No. The four pieces and the core are a model that organizes the five assessments: how you reason, think, choose work, learn and focus. They are not a map of brain anatomy, and no questionnaire can measure brain regions directly.
Is the ADHD screening a diagnosis?
No. It shows how often common attention and activity patterns appear in daily life. Only a doctor or psychologist can diagnose ADHD, and many people take their screening report to one.
What happens to my answers?
Free trial answers are saved on our servers, so they count toward the full test if you continue. Answers to a full test are encrypted. Answers are never sold or shared with third parties.