TL;DR

• Journal quartiles rank academic journals by citation impact within a field.

• Q1 journals are the top 25% by impact; Q4 journals are the bottom 25%.

• Quartile rankings come from databases like Scimago Journal & Country Rank (SJR).

• Publishing in a higher quartile journal carries more weight on applications.

• Quartile alone does not determine whether a journal is right for your paper.

You finish your research paper. You start looking for journals to submit it to. Then you see the terms Q1, Q2, Q3, and Q4 scattered across submission guides and academic forums. Nobody explains what they mean. You are left guessing whether they matter and, if so, how much.

They do matter. Not in the way that a single number defines the worth of your work, but in the way that understanding them helps you make smarter decisions about where to submit. Choosing a journal without knowing its quartile is like applying to a university without knowing its acceptance rate. You can do it, but you are missing useful information.

This post explains what journal quartiles are, how they are calculated, what Q1 through Q4 actually mean in practice, and how to use this information as a student researcher submitting your first paper.

What Is a Journal Quartile?

A journal quartile is a ranking that places an academic journal into one of four groups based on its citation impact score relative to other journals in the same subject category. Q1 contains the top 25 percent of journals by impact. Q2 covers journals ranked between 25 and 50 percent. Q3 covers 50 to 75 percent. Q4 covers the bottom 25 percent. The ranking is always relative to a specific field, not to all journals globally.

The most widely used source for quartile rankings is the Scimago Journal & Country Rank (SJR), which draws its citation data from Elsevier's Scopus database. SJR assigns each journal a score based on the number of citations it receives and the prestige of the journals doing the citing. Journals are then sorted within each subject category, divided into four equal groups, and assigned Q1, Q2, Q3, or Q4 accordingly.

A journal can hold different quartile rankings in different subject categories. A journal focused on environmental chemistry might be Q1 in Environmental Science and Q2 in Chemistry. This is normal. It reflects where the journal has the most influence relative to its peers.

If you are preparing your first submission and want a clearer picture of the full process, the guide on how to submit a research paper to a peer-reviewed journal walks through each step in plain terms.

How Are Q1, Q2, Q3, and Q4 Calculated?

Quartile rankings are calculated by sorting all journals within a subject category by their SJR score, then dividing that sorted list into four equal parts. The top quarter becomes Q1. The next quarter becomes Q2. Then Q3. Then Q4. The process is repeated separately for every subject category that SJR tracks, and SJR currently tracks over 330 subject categories according to its own published methodology.

The SJR score itself is not simply a raw citation count. It weights citations differently depending on the prestige of the journal that did the citing. A citation from a highly cited journal in your field contributes more to your score than a citation from a low-traffic journal. This is similar in principle to how Google's PageRank algorithm values links from authoritative sources more than links from obscure ones.

A separate but related metric is the Journal Impact Factor (JIF), published by Clarivate through the Web of Science. JIF measures the average number of citations received per article published in a journal over the previous two years. Some institutions use JIF quartiles rather than SJR quartiles. The two systems often produce similar rankings, but they are not identical. When you look up a journal, check which system the ranking comes from.

If you want to understand how to read a journal's own submission guidelines and find this information yourself, the post on how to read a journal's submission guidelines covers exactly that.

What Does Q1 Mean in Practice?

A Q1 journal is in the top 25 percent of its subject category by citation impact. In practice, this means the journal is widely read, frequently cited, and typically has a rigorous peer review process. Acceptance rates at Q1 journals are often low. For student researchers, publishing in a Q1 journal is a significant achievement and can carry real weight on a college application or graduate school portfolio.

However, Q1 status does not mean a journal is appropriate for every paper. Many Q1 journals publish only established researchers with multi-year studies, institutional affiliations, and large datasets. Submitting a high school research paper to a Q1 journal in a competitive field without understanding the scope of that journal is likely to result in a desk rejection, meaning an editor rejects the paper before it even reaches peer review.

The more useful question is not just what quartile a journal occupies, but whether your paper fits the journal's scope and whether the journal publishes work from student researchers. Some journals are specifically designed for early-career and student researchers. The Journal of Emerging Investigators, for example, is a peer-reviewed journal that explicitly welcomes middle and high school research. Understanding that distinction matters more than chasing the highest quartile number.

What Do Q2, Q3, and Q4 Mean for Student Researchers?

Q2 journals sit in the upper-middle range of their field. They are peer-reviewed, credible, and often have broader scope than Q1 journals, which makes them more accessible to researchers who are earlier in their careers. For a student publishing a first or second paper, a Q2 journal in a relevant field is a strong outcome.

Q3 journals are mid-range. They are still peer-reviewed and indexed in recognised databases, but they receive fewer citations and may have less stringent review processes. Publishing in a Q3 journal is still a legitimate academic publication. It demonstrates that your work passed peer review, which is the core standard.

Q4 journals require more caution. Some Q4 journals are legitimate but niche publications that simply have low citation traffic because their field is small. Others in this range may be predatory journals, meaning they charge publication fees without providing genuine peer review. If you are looking at a Q4 journal, verify it is listed in the Directory of Open Access Journals (DOAJ) or check its publisher against the Committee on Publication Ethics (COPE) member list. The post on what parents should know about predatory journals covers how to identify and avoid these.

If you want structured help identifying which journals match your paper's topic, scope, and your level as a student researcher, Publication Compass is a platform built to do exactly that, matching your draft to appropriate journals and giving you structured feedback before you submit.

How to Look Up a Journal's Quartile

Looking up a journal's quartile takes less than two minutes once you know where to go. Here is the process:

1. Go to scimagojr.com.

2. Type the journal's full name into the search bar.

3. Click on the journal in the results.

4. Scroll to the section labelled "Subject Category" to see the quartile ranking for each category the journal is listed under.

5. Note the year of the ranking, since quartiles are updated annually and a journal's position can change.

If a journal does not appear in SJR at all, that is worth noting. It may be too new to have accumulated citation data, or it may not be indexed in Scopus. Neither automatically disqualifies it, but you should verify it through another route, such as checking whether it appears in PubMed, DOAJ, or Web of Science.

For journals specifically aimed at high school researchers, the International Journal of High School Research is one option worth understanding before you decide where to submit. Knowing its scope and standards helps you judge whether it fits your work.

Does Quartile Ranking Matter for High School Students?

Quartile ranking matters, but it is one factor among several, not the only one. For a high school student, the more important questions are whether the journal is genuinely peer-reviewed, whether it publishes student work, and whether your paper fits its stated scope. A paper published in a credible Q3 journal that genuinely fits the journal's focus is a stronger outcome than a rejected submission to a Q1 journal that never publishes student research.

College admissions offices and scholarship committees are generally more interested in whether a publication is peer-reviewed and legitimate than in its exact quartile position. What they want to see is that you went through a real review process, responded to feedback, and produced work that met an external standard. That process matters more than the ranking number.

That said, if you are applying to highly competitive programmes or seeking research-focused scholarships, being able to name the quartile of your publication and explain what it means does demonstrate a level of academic literacy that stands out. Understanding the system is part of participating in it seriously.

For more on how journal type affects your submission strategy, the comparison of journal vs conference vs preprint server differences is a useful next read.

Frequently Asked Questions

What is the difference between Q1 and Q4 journals?

Q1 journals are in the top 25 percent of their subject category by citation impact score. Q4 journals are in the bottom 25 percent. Q1 journals are generally more selective, more widely cited, and carry more prestige. Q4 journals vary widely in quality and require more careful vetting before submission.

Can a journal be Q1 in one field and Q3 in another?

Yes. Quartile rankings are assigned per subject category, not globally. A journal that covers multiple disciplines will receive a separate ranking in each category it is listed under. This is common for interdisciplinary journals. Always check the ranking for the specific category that matches your paper's topic.

Are quartile rankings updated every year?

Yes. Scimago Journal & Country Rank updates its rankings annually based on citation data from the previous year. A journal's quartile can move up or down between years. When you look up a journal's ranking, confirm you are looking at the most recent year available.

Is a Q4 journal always predatory or low quality?

No. Some Q4 journals are legitimate publications in niche fields with small research communities and naturally low citation volumes. However, Q4 status does warrant closer inspection. Verify the journal is indexed in DOAJ or has a publisher listed in the COPE member database before submitting.

Do high school journals have quartile rankings?

Most journals specifically designed for high school researchers are not indexed in Scopus or Web of Science, so they do not have SJR or JIF quartile rankings. This does not make them illegitimate. Many are peer-reviewed and credible within the student research community. Evaluate them based on their peer review process, editorial board, and whether they are listed in recognised directories.

Conclusion

Journal quartiles are a ranking system, not a verdict on your work. Q1 through Q4 describe where a journal sits within its field by citation impact. Understanding that system helps you set realistic expectations, choose journals that fit your paper, and avoid wasting time on submissions that were never going to succeed. For student researchers, the priority is finding a credible, peer-reviewed journal that publishes work at your level, in your field, and within a scope that matches what you have written.

Start by looking up the journals you are considering on SJR. Check their quartile, read their scope, and verify they publish student work. That combination of steps will serve you better than chasing the highest quartile number available. For more guidance on the full publication process, visit the Publication Compass blog.