1. What is IQ?

IQ (Intelligence Quotient) is a score derived from standardized tests designed to measure human intelligence. The modern IQ scale is based on a normal distribution with a mean of 100 and standard deviation of 15.

2. How Does the Calculator Work?

The calculator uses the standard IQ conversion formula:

Where:

• \( Test Score \) — Raw score from standardized test
• \( Mean \) — Average score of the test population
• \( Standard Deviation \) — Measure of score variability in the population
• 15 — Standard deviation of IQ scale
• 100 — Mean of IQ scale

Explanation: The formula converts a raw test score to the standard IQ scale by comparing it to the test's normative data.

3. Importance of IQ Calculation

Details: IQ scores provide a standardized way to compare cognitive abilities across individuals. They are used in educational placement, psychological assessment, and research.

4. Using the Calculator

Tips: Enter your standardized test score, the test's mean score (typically provided with test results), and the test's standard deviation. Most common IQ tests use 100 as mean and 15 as SD.

5. Frequently Asked Questions (FAQ)

Q1: What is considered an average IQ?
A: An IQ score between 85 and 115 is considered average, as it falls within one standard deviation of the mean (100).

Q2: Can IQ change over time?
A: While IQ tends to remain relatively stable, it can change due to education, environment, and certain life experiences.

Q3: What's the difference between IQ and intelligence?
A: IQ is a measurement of intelligence as defined by specific tests, while intelligence itself is a broader concept encompassing various cognitive abilities.

Q4: Are online IQ tests accurate?
A: Professional, properly administered IQ tests are more reliable than most online versions, which often lack scientific validation.

Q5: What are the limitations of IQ tests?
A: IQ tests measure specific cognitive abilities but don't capture creativity, emotional intelligence, or practical problem-solving skills.