Let's Analyze What Makes a Good H-Index Score
Mar 7, 2023 |
8 Mins ReadUnderstanding H-Index
The H-index is a metric that measures an author’s productivity by the number of publications that have published their work and the impact of the work based on the number of citations their research receives. In general, authors with a higher h-index score will have produced more research and therefore published more content which, to their peers, creates their reputation of credibility.
This quantitative metric was brought about in 2005 by Argentinian-American professor of physics Jorge E. Hirsch to analyse publication data.
Finding an author’s H-index
There are multiple platforms on which you may find an author’s H-index score. To name a few, Google Scholar, Scopus, Web of science etc. However, in this blog, we’ll take you through the process of locating an author’s H-index on google scholar as shown below.
- Visit Google Scholar
- Enter the author’s name in the search bar
- If a profile exists for the author, it will appear at the top of the search results, click the author's name, and their profile page will open.
- View their h-index on the right side of the screen.
Calculating H-Index Score
The H-index measures the importance, significance, and impact of research contributions. To calculate an author’s H-index, you’d need to create a list of all publications in which the author has been published and rank them in descending order of the citations his/her work has received. Understanding the H-index of an author is an indication of their credibility, so that brings us to the question:
What is a good H-index score?
J. E. Hirsch (2005) observes that Noble Prize winners in physics have an average H-index score of 30, this highlights that Noble prize winners are selected with a scientific body of research and a history of contributional impact. This proved that successful scientists do need a good h-index score.
Hirsch stated that after 20 years of research; an H-index score of 20 was good, 40 was outstanding and 60 was truly exceptional.
Does the H-index score evaluate an author in all important aspects?
Undoubtedly, it is appealing to have a singular value that measures an author's productivity and impact. Many committees have opted the H-index as their metric of choice as well. Bordons and Costas (2007) stated that the key advantage of the H-index metric is that it measures the scientific output of a researcher with objectivity. This plays a vital role in making decisions about promotions, fund allocation and awarding prizes.
However, there are suggestions that H-index does not take other important variables into account. According to Enago Academy (2022), a higher H-index score does not indicate better quality of research. The article further elaborates that the H-index score does not account for an author’s career stage, research and journal quality and contribution to the scientific community. The score also has potential unintended negative impacts; for example, a younger researcher may not challenge a researcher with a high h-index score and researchers aiming for a higher h-index may only pursue popular fields of science.
Furthermore, BiteSizeBio (2021) states that the H-index score does not take into account the number of authors on a research paper. If a paper has 1 author with about 100 citations, this researcher deserves more recognition than a paper that had 10 authors with similar citations.
The fluctuation of the H-index score
The H-index score does not decrease unless the paper is redacted or deleted. Older papers may continue to gain new citations, and the h-index can potentially increase indefinitely, even after the researcher has stopped actively publishing.
What is the difference between H-index and the journal impact factor?
The Journal Impact Factor metric is used to evaluate the importance of a journal within its respective field or discipline. In simpler terms, it measures the frequency of citations the average article within this journal receives. On the contrary, the H-index metric is used to measure the productivity and quality of an author’s publications. While they are both measures of research quality, they measure different aspects of research and can therefore not be compared.
To conclude, having a good H-index score is impressive. However, every author’s research contrasts with that of another. There are many more aspects to investigate when evaluating a researcher.
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How to Find Peer-Reviewed Articles for Your Research
If you're doing research, you'll want to use reliable sources. Peer-reviewed articles are among the best because experts review them before they're published, ensuring quality and credibility. The benefits of expert peer review in research are significant—it helps maintain high standards, validates findings, and improves the overall reliability of academic work. But how do you find these peer-reviewed journal articles, and how can you tell if a journal is peer-reviewed? Let's break it down. What Are Peer-Reviewed Articles? A peer-reviewed article is one that has been checked by other experts in the field before publication. This process helps make sure the research is solid and trustworthy. Where Can You Find Peer-Reviewed Journal Articles? You can find peer-reviewed articles in a few different places: University Libraries – If you're a student or faculty member, your university library probably gives you access to research databases. Academic Databases – Websites like PubMed, JSTOR, ScienceDirect, and Web of Science have collections of scholarly peer-reviewed articles. Zendy – Affordable and accessible peer-reviewed scholarly content, in partnerships with leading publishers e.g., IntechOpen, IEEE, IT Governance Publishing, and IGI Global, powered by AI. Google Scholar – Some journal articles here are peer-reviewed, but not all. You’ll need to check the source. See The Growth of Digital Libraries: Benefits, Challenges & Trajectory How to Recognise Peer-Reviewed Journal Articles There are 4 ways to check if a journal is peer-reviewed or not: Visit the Journal’s Website – Look for a section about their review process. Use Library Databases – Many academic databases label peer-reviewed journals. Check the Editorial Board – A peer-reviewed journal usually lists experts who review submissions. Look It Up on Ulrichsweb – This directory can tell you if a journal is peer-reviewed. Are Google Scholar Articles Peer-Reviewed? Not necessarily. Google Scholar collects all sorts of academic work, including conference papers and preprints, which may not have gone through peer review. To check, see if the article was published in a reputable journal. What Is a Peer Review Example? Let’s say a scientist submits a research paper to a journal. The editor sends it to other experts, who review it for accuracy and clarity. And then they might suggest changes or reject the paper if it doesn’t meet the journal’s standards. So if the paper gets approved, it’s published as a peer-reviewed article. What’s the Difference Between Peer Review and an Original Article? Peer Review – A process where experts evaluate a research paper before it’s published. Original Article – A research paper that presents new findings. Some original articles are peer-reviewed, while others aren’t. How To Select Peer-Reviewed Journal Articles? When looking for peer-reviewed articles: Check the Journal – Make sure it's known for publishing peer-reviewed articles. Look at the Author’s Background – Are they an expert in the field? Review the References – Good research builds on other credible studies. Use Trusted Databases – Databases like Zendy, PubMed, and Scopus focus on peer-reviewed work. How Do You Know If a Peer-Reviewed Article Is Credible? Even among scholarly peer-reviewed journals, some are more reliable than others. Here’s what to look for: Reputation of the Journal – Some journals have stricter standards than others. Possible Bias – If a study is funded by a company with an interest in the results, for example, a pharmaceutical company funding a study on its own medication might have an interest in positive findings, be cautious. Strong Research Methods – A reliable, peer-reviewed article clearly explains how the research was conducted and how conclusions were reached. Retraction History – Some papers are later retracted due to mistakes or misconduct. Check if the article has been retracted. Final Thoughts It’s not hard to find peer-reviewed journal articles; it just takes a trusted source and a clear understanding of what you’re looking for. Digital libraries like Zendy give you access to everything you need in one place, including both free and paywalled peer-reviewed articles, with over 40 million articles across disciplines like engineering, medicine, economics, and more. .wp-block-image img { max-width: 85% !important; margin-left: auto !important; margin-right: auto !important; }
Impact Factor of Journals: What You Need To Know
The impact factor of journals is a crucial academic publishing metric, serving as a measure of a journal's influence and importance within its field. For you, as a researcher, and institutions alike, understanding this journal classification is essential for making informed decisions about where to publish and which journals to follow. What is Impact Factor? The Impact Factor was created by Eugene Garfield, the founder of the Institute for Scientific Information (ISI). Garfield first mentioned the idea of an impact factor in Science magazine in 1955. In the early 1960s, Eugene Garfield with the help of Irving H. Sher created the Journal Impact Factor (JIF) to help select journals for the Science Citation Index (SCI). They developed this metric by re-sorting the researcher citation index into a journal citation index. Initially, the Impact Factor was used internally by ISI to compile the Science Citation Index. In 1975, ISI began publishing the Journal Citation Reports (JCR), which included the Impact Factor calculations for journals. How is the Impact Factor of Journals Calculated? By calculating the average number of citations received by articles published in those journals over a set period of time, typically two years. For example, the 2022 impact factor of journals is calculated as follows: Journal Impact Factor (JIF) = A / B Where: A = Total number of citations in a given year (e.g., 2023) to articles published in the previous two years (e.g., 2021 and 2022). B = Total number of citable items (articles, reviews, etc.) published in those same two years (2021 and 2022). What Does the Impact Factor of Journals Tell a Researcher? The impact factor of journals provides you with valuable insights into a journal's influence and importance within its field. Here's what the impact factor tells you: 1. Journal Quality: A higher impact factor generally indicates a more prestigious and influential journal in its discipline. This can help you identify high-quality publications for your work. 2. Citation Frequency: The impact factor reflects the average number of citations received by articles published in the journal over a specific period. This indicates how frequently the journal's content is cited by other researchers. 3. Visibility and Reach: Journals with higher impact factors tend to have broader readership and greater visibility in the academic community. Publishing in these journals can increase the exposure of your research. 4. Research Influence: The impact factor of journals can serve as a proxy for the potential influence of research published in a particular journal. It suggests how impactful the average article in that journal might be. 5. Career Advancement: Publishing in high impact factor journals can be crucial for academic and professional advancement, often considered in tenure decisions, grant applications, and professional evaluations. 6. Comparative Tool: Researchers can use the impact factor to compare journals within the same field, helping them make informed decisions about where to submit their work. However, it's important to note that the impact factor has limitations. It doesn't measure the quality of individual articles, and it can be influenced by factors such as the number of review articles a journal publishes. You should consider the impact factor alongside other metrics (e.g., SJR scores), and qualitative assessments when evaluating journals for your research. What is a good impact factor? The impact factor (IF) is a metric used to evaluate the influence and quality of academic journals by measuring the frequency with which their articles are cited. Generally, a higher impact factor indicates a more influential journal within its field. However, "good" impact factors vary significantly across different disciplines. For instance, in biochemistry, impact factors are often categorized as follows: Good: 2–4 Great: 5–8 Awesome: 9–14 Excellent: Above 14 It's important to note that these ranges are approximate and can vary based on specific research areas. Additionally, while impact factors provide insight into a journal's citation frequency, they do not necessarily reflect the methodological quality or societal impact of individual articles. Therefore, when assessing research quality, it's advisable to consider multiple metrics alongside the impact factor. What are the Highest Impact Factor Journals Some of the top impact factor journals include: Medical and Life Sciences- CA-A Cancer Journal for Clinicians (254.7)- The New England Journal of Medicine (91.245)- The Lancet (79.321)- Nature Reviews Molecular Cell Biology (94.444) Multidisciplinary Sciences- Nature (50.5)- Science (47.728) Physical Sciences- Chemical Reviews (60.622)- Nature Materials (43.841)- Nature Nanotechnology (39.213) Environmental Sciences- Energy & Environmental Science (38.532)- Nature Geoscience (16.908) Computer Science and Engineering- IEEE Transactions: Systems, Man, and Cybernetics (13.451) These top-tier journals represent the pinnacle of academic publishing, often featuring groundbreaking research and influential studies. Academic Journal Impact: Beyond the Numbers While the impact factor of journals is a valuable journal ranking, it's important to consider other factors when evaluating academic influence: Field-specific considerations: Impact factors can vary significantly between different academic disciplines Citation patterns: Some fields have faster citation cycles than others, affecting impact factor calculations. Journal scope: Specialised journals may have lower impact factors but still be highly influential in their niche. Conclusion Understanding the impact factor of journals is crucial for researchers navigating the academic publishing landscape. While it's a valuable metric, it should be considered alongside other factors when evaluating journal quality and influence. By staying informed about impact factors and their implications, researchers can make more strategic decisions about where to publish their work and maximise the visibility and impact of their research. .wp-block-image img { max-width: 85% !important; margin-left: auto !important; margin-right: auto !important; }
Best AI Tool for Literature Review: 5 Top Picks for 2025
Conducting and writing a literature review has always been the most time-consuming task of any academic research. Weeks of reading countless scientific papers (if not months), summarising key points, and identifying gaps in existing research. Fortunately, AI is making this process a lot easier, faster and more efficient. In this blog, we’ll go through the best AI tool for literature review in 2025. Why Use AI for Literature Reviews? Before we dig into the list of the best AI tool for literature review, let's ask ourselves, why use AI in the first place? The answer is very simple: Saving Time: AI literature review tools can quickly scan thousands of research papers and extract relevant information in seconds. Improving Accuracy: AI tools in research can help you identify key themes, citations, and trends, reducing the chances of missing important studies. Enhancing Organisation: Many AI tools for literature review offer smart categorisation, tagging, and citation management, ensuring a well-structured literature review. Best 5 AI Tools for Literature Review in 2025 Here are the top AI tools that can help you conduct a literature review: 1. ZAIA by Zendy ZAIA is not just the best AI tool for literature review, it’s also one of the best personal AI research Q&A assistants that will help you effectively explore a large amount of academic research. Keyphrase highlighting, summarisation, PDF analysis, and AI insights make it a great AI tool for the literature review process. 2. Elicit Elicit uses AI to automate the research process, allowing you to generate structured summaries, find relevant papers, and extract key insights without manual searching. 3. Research Rabbit This tool is known for its unique visualisation of research connections. It helps users discover related papers and track the evolution of ideas across different studies. 4. Scite Scite provides citation analysis with AI-powered insights, allowing researchers to evaluate how a study has been cited in different contexts—supportive, contrasting, or neutral. 5. Semantic Scholar Powered by AI, Semantic Scholar enhances literature discovery by providing smart recommendations, citation tracking, and insights into academic papers. How to Write a Literature Review Using AI It can be quite difficult to write a literature review, but AI can help in several ways: Summarise Key Points: Summarisation by AI condenses long written materials to easily readable insights. Rewrite and Paraphrase: AI is also useful in manuscript improvements to guarantee clarity and consistency while maintaining professionalism in academia. Ensure Proper Citations: AI citation tools help with reference management and formatting. Refine and Edit: Make your literature review more polished and professional by using writing tools to improve readability and flow. What Is the Difference Between an Annotated Bibliography and a Literature Review? Annotated BibliographyLiterature ReviewPurposeSummarises and evaluates each source individuallySynthesises and analyses sources collectivelyStructureOrganised as a list of citations with annotationsOrganised thematically or methodologicallyDepth of AnalysisFocuses on each source’s contributionIdentifies patterns, gaps, and trends in researchUse in ResearchOften used as a preparatory step for literature reviewsUsed as a foundation for research projects or thesesWriting StyleConcise, source-focusedIntegrative, argument-driven Is It Ethical to Use AI for Literature Reviews? When using AI-powered literature review tools, keep these principles in mind in order to not compromise your research integrity: Use AI responsibly and ethically to avoid plagiarism or creation of misleading content Remember that AI is a tool, not a replacement for human expertise Critically evaluate the information provided by AI tools Exercise judgment when incorporating AI-generated insights into your research By following these guidelines and leveraging AI tools effectively, you can conduct a more efficient and insightful literature review while maintaining the integrity of your research process. Disclaimer: AI-generated content should always be reviewed and verified by researchers to ensure accuracy and ethical compliance in academic work. Conclusion AI tools for literature review are making literature reviews easier, faster, and more organised. Whether you’re a student or a researcher, the right tool can help you sort through academic papers, find key insights, and manage citations without getting overwhelmed. Each tool on this list has something useful to offer. ZAIA is a great choice if you’re looking for the Best AI tool for literature review that highlights key points, summarises research, and helps you navigate academic papers more efficiently. Elicit and Research Rabbit are helpful for finding related studies, while Scite and Semantic Scholar can guide you through citations and academic trends. AI won’t do all the work for you, but it can take some of the pressure off. If you haven’t tried using AI for your literature review yet, now might be a good time to start. .wp-block-image img { max-width: 85% !important; margin-left: auto !important; margin-right: auto !important; }