As an expert in the field of psychology and human intelligence, I've spent considerable time studying the intricacies of cognitive abilities and the various ways they are measured. When we talk about IQ, or Intelligence Quotient, it's essential to understand that it is a metric designed to assess human intelligence and cognitive abilities. The concept of IQ was first introduced by the psychologist William Stern in 1912, and later popularized by Lewis Terman in 1916, who developed the original notion of IQ and proposed a scale for classifying IQ scores. According to Terman's scale, an IQ score of 120 falls within the "Very superior intelligence" category.

To determine whether an IQ of 120 is considered "good," we must consider several factors, including the distribution of IQ scores, the context in which the score is used, and the limitations of IQ as a measure of intelligence.

1. Distribution of IQ Scores:
The distribution of IQ scores typically follows a bell curve, known as a normal distribution. The average IQ score is set at 100, with a standard deviation of 15 points. This means that approximately 68% of the population scores between 85 and 115, which is considered the range for "Normal or average intelligence." An IQ of 120 places an individual in the top 10-15% of the population, which is a significant achievement and indicates a high level of cognitive ability.

2. Context of Use:
The context in which an IQ score is used is crucial. In an academic setting, a higher IQ might be associated with greater academic success, although it is not the sole determinant of success. In professional environments, while a high IQ can be an asset, other factors such as emotional intelligence, interpersonal skills, and practical knowledge often play a more critical role. In everyday life, an individual with a high IQ may excel in problem-solving and logical reasoning but may not necessarily find it easier to navigate social situations or emotional challenges.

3. Limitations of IQ as a Measure:
It's important to recognize the limitations of IQ as a measure of intelligence. Critics argue that IQ tests do not capture the full range of human intelligence, which is multifaceted and includes emotional intelligence, creativity, practical intelligence, and more. Moreover, IQ tests are culturally biased and can be influenced by factors such as socioeconomic status, education, and language proficiency. Therefore, an IQ score should not be the sole criterion for evaluating a person's intellectual capabilities.

4. The Role of Effort and Learning:
Another critical aspect to consider is that intelligence is not a fixed trait. Research in the field of psychology, particularly in the area of growth mindset, emphasizes the importance of effort and learning in developing cognitive abilities. An individual with an IQ of 120 who is committed to continuous learning and self-improvement can achieve great things, just as someone with a lower IQ score can do with the right mindset and dedication.

**5. The Importance of Holistic Development:**
Lastly, it's essential to focus on holistic development. An IQ score is just one aspect of a person's cognitive profile. Emotional well-being, social skills, physical health, and moral values are equally important for a well-rounded life. A person with an IQ of 120 should not solely focus on their intellectual prowess but also work on developing other areas of their life to lead a balanced and fulfilling life.

In conclusion, an IQ of 120 is generally considered to be a good score, indicating a high level of cognitive ability. However, it is just one measure of intelligence and should be viewed in the context of an individual's overall development and abilities. It's crucial to remember that success in life is not solely determined by one's IQ but by a combination of factors, including effort, perseverance, and the ability to learn and grow.

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Lewis Terman (1916) developed the original notion of IQ and proposed this scale for classifying IQ scores: Over 140 - Genius or near genius. 120 - 140 - Very superior intelligence. ... 90 - 109 - Normal or average intelligence.read more >>