IQ and Earning a Ph.D.: A Comprehensive Analysis

There isn't a specific IQ score mandated for obtaining a Ph.D., as success in doctoral programs relies not solely on intelligence but also on several other factors including motivation, perseverance, research skills, and critical thinking. However, certain studies suggest that individuals with an IQ around 120 or higher might have a higher probability of excelling in rigorous academic environments, such as Ph.D. programs. It's crucial to understand that many successful Ph.D. candidates have IQs below this threshold and compensate through hard work, creativity, and effective study habits.

Understanding the Requirements for a Ph.D.

Obtaining a Ph.D. involves extensive coursework and research leading to a dissertation. Typically, this process can take anywhere from 12 to 24 months of dedicated work. A Ph.D. candidate must accumulate approximately 100 credit hours in their specialization and often face grueling qualifying exams, such as one which took the author of this article 8 hours to complete. Common challenges also include the field of study, with STEM and statistical fields requiring higher IQ scores in comparison to non-STEM or humanities fields.

IQ Scores and Field of Study

According to the author, if you are not seeking to earn a Ph.D. but merely hold one, any IQ will suffice as long as you possess sufficient arm strength (as degrees can be relatively heavy). However, earning a Ph.D. indeed requires significant effort and commitment, with the required IQ range varying greatly depending on the subject area. For instance:

Non-STEM/No statistics: A minimum IQ of 130 is recommended.

STEM/Statistical: An IQ of 135 is advised.

Note that these recommendations may also depend on the institution you wish to attend, such as CalTech being more challenging than the University of North Dakota.

The Role of Grit and Interest in Achieving a Ph.D.

The success rate in earning a Ph.D. is significantly influenced by your willingness to work hard and overcome obstacles, a characteristic known as grit. Grit is closely tied to how genuinely interested you are in your field. The author recounts a vivid dream where they were reminded of their high school diploma's invalidity for not completing a required course. This dream was resolved by reminding themselves that soon they would obtain a Ph.D., making such concerns irrelevant.

In general, people with higher IQs tend to learn more quickly and persist longer in the face of challenges, which translates to a higher likelihood of successfully completing a Ph.D. compared to those with average IQs. However, financial constraints and competing obligations also play a major role; it is much easier to complete a Ph.D. if you don't have to work and have time to raise a family.

Conclusion

Earning a Ph.D. is a multifaceted endeavor that combines intelligence, perseverance, and a deep interest in your field. While IQ can provide a slight edge, it is not the sole determinant of success. Ultimately, dedication, the ability to tackle complex topics, and the pursuit of genuine interest in your field are key to earning a Ph.D.