IQ by College Major: What Research Shows About Fields of Study
Searches for IQ by college major usually expect a league table: engineering at the top, then mathematics, computer science, and so on. There is no authoritative national dataset that assigns a validated average IQ to every field of study. The numbers shared online usually mix selective samples, self-reported quizzes, SAT scores, grades, and completed education as though they were the same construct.
The more accurate question is: What cognitive skills do different fields use, who chooses them, and how does education change those skills? This article separates measured intelligence from admissions indicators and explains how to use field-of-study data without turning a selection effect into a stereotype.
Is there an average IQ for each college major?
No scientifically accepted average IQ exists for every college major. A valid comparison would need large, representative samples from each field, the same normed cognitive instrument, comparable testing conditions, age and language controls, and uncertainty intervals. Most online “major IQ” charts provide none of these.
| Number often used online | Why it is not a major-specific IQ |
|---|---|
| Average SAT or ACT score | An admissions test taken by a selected group; it is not an IQ score |
| GPA or exam grade | Depends on course content, teaching, effort, grading, and opportunity |
| IQ from an online quiz | Often lacks published norms, reliability, and representative sampling |
| A small psychology study | May describe that sample, but cannot rank every student in the field |
A difference between two groups can be real in one dataset and still fail to describe the full population. Students who enter a demanding major may have been selected by prior grades, family resources, school quality, admissions policy, interests, and access to prerequisite courses before the major even begins.
What does research actually measure?
Some studies administer a cognitive test to students in different programs. For example, one study of 130 students at King Saud University compared computer-science and art students using the Test of Nonverbal Intelligence, Third Edition. It reported a difference in that sample, but its size, country, institution, recruitment method, and field definitions limit generalization. A result like this is evidence for a research question—not a global “computer-science IQ.”
Other studies examine how students choose a field rather than measuring IQ. A 2024 set of studies on major choice found that students’ understanding of their own personalities and their engagement with the decision were related to later academic outcomes. The finding supports advising and self-reflection; it does not create an intelligence ranking of majors.
| Research design | What it can answer | What it cannot answer |
|---|---|---|
| Cognitive test before declaring a major | Whether groups differ in that sample at that time | The innate ability of everyone who later chooses the field |
| Test after several years of study | Whether performance differs after education and selection | How much of the difference existed before college |
| SAT scores by intended major | How a selected group of test takers performed on SAT tasks | The IQ distribution of the completed major |
| Adult skills survey by field | How literacy, numeracy, or problem solving vary among adults | A universal IQ score or a causal effect of the major |
Can SAT scores be used as IQ by major?
No. SAT means are not IQ means. The SAT is designed for college-admissions decisions and includes specific reading, writing, and math content. It is taken by a self-selected population, and participation rates differ by school, family resources, geography, and intended education. A high SAT average in one intended major can reflect who applies and which colleges they target, not a fixed cognitive trait of the major.
The National Center for Education Statistics reports SAT means by intended major and degree goal. Such a table can describe the test-taking population and provide context for admissions, but it should be labeled as SAT performance. Converting a 2023 SAT mean into an IQ number would imply a norming relationship the dataset does not provide.
Do STEM majors have higher IQs than arts majors?
The evidence does not justify a universal hierarchy. STEM courses often demand quantitative reasoning, symbolic manipulation, and cumulative mathematics. Arts and humanities courses can demand language, interpretation, historical reasoning, design, memory, and creative synthesis. The skills emphasized by a curriculum are not a single general-intelligence score, and students within every field vary widely.
Selection is also multidirectional. A student may choose engineering because they already enjoy mathematics, because a counselor recommended it, because of labor-market prospects, or because their school offered the required courses. Another may choose art because of visual-spatial talent, portfolio experience, family support, or a career goal. None of these pathways proves one student is globally “smarter.”
What do adult skills surveys tell us about fields of study?
The OECD Survey of Adult Skills (PIAAC) measures literacy, numeracy, and adaptive problem solving—transferable skills used in work and everyday life. It is more informative than an internet IQ list because it uses a defined framework and probability samples, but it still does not measure an IQ by major.
The OECD reports that fields of study are distributed differently across vocational and tertiary pathways. Technical fields such as engineering and manufacturing are more common in some vocational routes, while other fields are more prevalent among adults with bachelor’s degrees or higher. In the 2023 survey, social and emotional skills were also associated with field-of-study choices. These patterns show that education, interests, opportunity, and skills interact; they are not evidence that a major creates one type of mind.
Does studying a major raise IQ?
Education can improve measured cognitive skills, but a major is not a guaranteed IQ intervention. A large meta-analysis found positive effects of additional education on several categories of cognitive ability. Years of schooling, practice with complex material, social environment, and selection all contribute. The effect is not the same as saying that one subject makes every student’s IQ rise by a fixed number.
The direction can also run both ways: prior skills influence who enrolls and succeeds, while education further develops skills. A student who changes major has not “lost” intelligence; they may be matching interests, health, finances, teaching style, or life goals more effectively.
How should you choose a college major if you care about ability?
Use multiple kinds of evidence rather than a major-IQ chart:
- Look at the actual curriculum. Identify the reading, mathematics, laboratory, design, writing, or project work you will do.
- Review your performance by task. Which activities show persistence and learning—not just one standardized score?
- Try a low-cost sample. Take an introductory course, project, lab, studio, or open lecture before making an expensive commitment.
- Ask about support and access. Tutoring, accommodations, finances, language, and schedule can change outcomes.
- Use assessment for a specific question. A professionally administered cognitive test may describe selected strengths, but it cannot pick a life path for you.
- Include values and opportunity. A good fit involves interests, health, work conditions, goals, and realistic routes into the field.
An IQ score can be useful information about selected cognitive tasks. It cannot tell you whether you will enjoy a major, persevere through its difficult parts, collaborate well, or build a satisfying career. Those outcomes depend on many skills and circumstances that no single number captures.
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Q: Which college major has the highest average IQ?
A: No major has a scientifically established highest average IQ. Studies and SAT tables describe selected samples and different measures. They cannot be combined into a universal ranking of the people who study each field.
Q: Is engineering IQ higher than art or humanities IQ?
A: That comparison is too broad to be valid. Engineering may emphasize quantitative reasoning, while arts and humanities emphasize other complex skills. Within-major variation is large, and selection and opportunity affect group averages.
Q: Can I convert my SAT score into an IQ by major?
A: No. SAT and IQ scores use different tests, norms, purposes, and populations. A conversion would create false precision.
Q: Does choosing computer science mean I have a high IQ?
A: No. Computer science requires learnable mathematical, logical, and programming skills, but students enter with different preparation and strengths. A major is not a diagnosis or an intelligence label.
Q: Can college education increase IQ?
A: Additional education is associated with gains in several cognitive skills, but there is no fixed gain for a particular major. Education and prior ability influence each other, and individual results vary.
References
- NCES: SAT mean scores by intended college major, 2017–2023
- Role of cognitive assessment for high school graduates prior to choosing a college major
- Major Choices, Personal Intelligence, and Academic Success
- OECD Skills Outlook 2025: Field of study and adult skills
- How Much Does Education Improve Intelligence? A Meta-Analysis
Last updated: July 19, 2026
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