What does impact factor tell you?

Impact factor is commonly used to evaluate the relative importance of a journal within its field and to measure the frequency with which the “average article” in a journal has been cited in a particular time period. Journal which publishes more review articles will get highest IFs.

What is a good impact factor?

You can find a journal's impact factor by referring to the Journal Citations Report (JCR) or Scopus. 🍋 What is an average 'good' impact factor? In general, an impact factor of 10 or higher is considered remarkable, while 3 is good, and the average score is less than 1.

Is an impact factor of 4.5 good?

In most fields, the impact factor of 10 or greater is considered an excellent score while 3 is flagged as good and the average score is less than 1.

What does an impact factor of 2.5 mean?

The impact factor of a journal is a measure of the frequency of citation of an average article in that journal over a particular period: e.g. an impact factor of 2.5 means that on average an article has been cited 2.5 times.

Is an impact factor of 7.5 good or bad?

An impact factor of about 7.5 is relatively high and generally indicates that the journal is influential within its field.

Understanding the impact factor

Is 2.7 a good impact factor?

In most fields, the impact factor of 10 or greater is considered an excellent score while 3 is flagged as good and the average score is less than 1. This is a rule of thumb.

Is 2 a low impact factor?

Firstly, a journal with an IF of 2-2.5 may be considered a bit on the lower side, but not very low. Note that many journals fall in this bracket. The majority of journals, in fact, fall in the bracket of an IF of 1-1+. So, a journal with an IF of 2-2.5 would be considered having a higher impact than these journals.

Is 6.3 A good impact factor?

The top 5% of journals have impact factors approximately equal to or greater than 6 (610 journals or 4.9% of the journals tracked by JCR).

Is 11 a good impact factor?

It's one of the most popular metric tools used for this purpose. However, what is a good impact factor? Technically, it depends on the subject category, but we can safely say that 10 is an excellent score in most fields.

What is a good h-index?

What is a Good H-Index? Hirsch reckons that after 20 years of research, an h-index of 20 is good, 40 is outstanding, and 60 is truly exceptional. In his paper, Hirsch shows that successful scientists do, indeed, have high h-indices: 84% of Nobel Prize winners in physics, for example, had an h-index of at least 30.

Is plos one a reputable journal?

PLOS ONE is a peer reviewed scientific journal with a rigorous editorial screening and assessment process made up of several stages.

Is PNAS a high impact journal?

According to Journal Citation Reports, the journal has a 2022 impact factor of 11.1. PNAS is the second most cited scientific journal, with more than 1.9 million cumulative citations from 2008 to 2018. In the mass media, PNAS has been described variously as "prestigious", "sedate", "renowned" and "high impact".

What is a good h-index after 30 years?

h index of 60 after 20 years, or 90 after 30 years, characterizes truly unique individuals.

How impact factor is calculated?

Thus, the impact factor of a journal is calculated by dividing the number of current year citations to the source items published in that journal during the previous two years (see Figure 1). The impact factor is useful in clarifying the significance of absolute (or total) citation frequencies.

What is the 5 year impact factor?

The ISI 5-Year Impact Factor is the average number of times articles from the journal published in the past five years have been cited in the given Journal Citation Report (JCR) year.

What does an impact factor of 3.5 mean?

A journal impact factor is a metric that assesses the citation rate of articles published in a particular journal over a specific time – that's usually 2 years (see below). For example, an IF of 3 means that published articles have been cited on average 3 times during the previous 2 years.

What is the minimum impact factor for a Q1 journal?

In general, Q1 journals tend to have higher impact factors than those in lower quartiles, and the minimum impact factor for a Q1 journal can range from around 2-3 in some fields to well over 10 in others.

Is Q2 journal good?

The classification of journals by quartile (Q) is based on the impact factor. Q1 includes the most prestigious journals in the field with the highest number of citations. Q2 covers journals with slightly lower impact factors, but still of high quality.

How good is an impact factor of 4?

In most fields, the journals with impact factor of 10 or greater is considered an excellent score while 3 and above is considered as good. Whereas, a journal with an impact factor equal to 1 is considered low.

Is Jama reputable?

JAMA Internal Medicine is an international peer-reviewed journal designed to provide an indispensable and trustworthy source of peer-reviewed evidence to advance the field of internal medicine worldwide.