1. What is IQ?

IQ (Intelligence Quotient) is a score derived from standardized tests designed to measure human intelligence. The original IQ formula compares mental age to chronological age.

2. How Does the IQ Calculator Work?

The calculator uses the classic IQ formula:

Where:

• Mental Age — The age level at which the individual functions intellectually
• Chronological Age — The actual age of the individual

Explanation: A score of 100 means mental age equals chronological age. Scores above 100 indicate advanced intellectual development for one's age.

3. Importance of IQ Measurement

Details: While controversial, IQ tests can help identify intellectual giftedness, learning disabilities, and cognitive strengths/weaknesses when used appropriately.

4. Using the Calculator

Tips: Enter mental age (determined through testing) and chronological age (actual age) in years. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Is this the only way to calculate IQ?
A: Modern IQ tests use deviation IQ with a mean of 100 and standard deviation of 15, but this classic formula shows the original concept.

Q2: What is considered a normal IQ?
A: About 68% of people score between 85-115, which is considered the average range.

Q3: Can IQ change over time?
A: Yes, IQ can change somewhat with education, environment, and brain development, especially in childhood.

Q4: What are the limitations of IQ tests?
A: They measure specific cognitive abilities, not overall intelligence, creativity, or emotional intelligence.

Q5: Should IQ tests be used alone for important decisions?
A: No, they should be part of a comprehensive assessment with other measures and professional judgment.