As an expert in the field of cognitive psychology and neurodevelopment, I can provide you with a comprehensive answer to your question about whether IQ can change with age.

**Introduction to Intelligence Quotient (IQ)**
Intelligence Quotient, or IQ, is a measure of cognitive abilities and problem-solving skills. It is typically assessed through standardized tests that aim to quantify an individual's intellectual capabilities. These tests are designed to evaluate various aspects of intelligence, including logical reasoning, spatial awareness, memory, and verbal comprehension.

Developmental Changes in IQ
It is widely recognized that IQ can change over time, particularly during the early years of life. The brain undergoes significant development from infancy through adolescence, and this period is marked by rapid growth and plasticity. As a result, a child's cognitive abilities can improve dramatically as they learn and acquire new skills.

Stability of IQ with Age
While IQ can fluctuate during childhood and adolescence, it tends to become more stable as individuals reach adulthood. This stability is due to several factors, including the completion of most brain development by the late teenage years and the establishment of cognitive patterns that are less susceptible to change.

Factors Influencing IQ Changes
Several factors can influence changes in IQ over time. These include:


1. Education: Access to quality education can significantly impact an individual's cognitive development and IQ. Learning new skills and knowledge can enhance one's intellectual abilities.


2. Environmental Factors: The environment in which a person grows up can also affect their IQ. Factors such as exposure to toxins, nutrition, and socio-economic conditions can all play a role.


3. Health and Nutrition: Good health and proper nutrition are essential for optimal brain function. Malnutrition or health issues can negatively impact cognitive abilities.


4. Brain Training: Engaging in activities that challenge the brain, such as puzzles, learning new languages, or playing strategic games, can help maintain and even improve cognitive function.


5. Genetics: Genetics play a role in determining an individual's intellectual potential. However, environmental factors and personal experiences can also influence the expression of these genetic traits.

Volatility of IQ Scores
It is true that the most volatility in IQ scores occurs during childhood and adolescence. This is a period when the brain is most adaptable and responsive to new experiences and learning. As individuals age, their IQ scores tend to become more stable, although they can still be influenced by the factors mentioned above.

Long-term Stability of IQ
While IQ scores can change over time, the degree of change is typically not as dramatic as it is during the developmental years. Most adults will find that their IQ scores remain relatively consistent throughout their lives, barring any significant health or cognitive issues.

Conclusion
In conclusion, IQ can indeed change with age, particularly during the developmental years. However, as individuals mature and their brains reach a state of relative stability, IQ scores tend to become more consistent. It is important to note that while IQ is a useful measure of cognitive abilities, it does not capture the full spectrum of human intelligence and potential. Factors such as creativity, emotional intelligence, and social skills are equally, if not more, important in determining an individual's success and well-being.

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Yes, your IQ can change over time. But [IQ] tests give you the same answer to a very substantial extent, even over a period of year. The older you are, the more stable your test score will be. The most volatility in IQ scores is in childhood, mostly in adolescence.Feb 9, 2012read more >>