Professional IQ Test

An Intelligence Test (IQ) is a series of assessments that must be completed within a specific time limit, commonly referred to as a time limit test—a set of relatively easy questions given in a limited time, where the goal is to answer as many questions correctly as possible.

iq-test

Read Instructions First:

  • 🧠 Total: 30 questions
  • ⏱️ Time: 30 minutes
  • ❌ Incorrect answers do not reduce your score
  • ✅ Each question has only one correct answer
  • 🔄 The test will reset if the time limit is exceeded

About This IQ Test

This test follows the International Stanford-Binet Intelligence Scale principles, focusing on pattern recognition and logical reasoning - key components of fluid intelligence. Your score is age-adjusted and compared to a normative sample.

🧪 About Stanford-Binet Intelligence Scale (SBIS)

🔍 1. What is the Stanford-Binet Scale?

This IQ test was originally developed by Alfred Binet in France and later revised in the United States by Lewis Terman from Stanford University — hence the name Stanford-Binet.

🧠 2. How IQ Scores Work in Stanford-Binet

  • The test produces a standard IQ score based on population averages, with a midpoint of 100.
  • IQ is calculated through a combination of multiple subtests (verbal, nonverbal, logic, memory, and more).
  • Your raw performance is compared to age-adjusted norms to determine your final IQ score.

Understanding IQ Scores

IQ RangeClassification% of Population
140+Genius or near genius0.2%
120-139Very superior intelligence6.7%
110-119Superior intelligence16.1%
90-109Normal or average intelligence50%
80-89Dullness16.1%
70-79Borderline deficiency6.7%
Below 70Definite feeble-mindedness2.2%
BenarIQKlasifikasiPercentil
0–570–85Borderline–Low2–16%
1085Low Average16%
15100Average50%
20115High Average84%
25130Superior98%
30145Very Superior99.9%

Test Validity

  • ✅ Consistent with professional IQ tests
  • 📊 Normal distribution (bell curve)
  • 📐 Standard SD15 scale
  • ⚖️ No illogical spikes
  • 🔍 Psychometrically valid

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