SCI periodical score refers to the influencing factors of SCI periodicals. The highest score is at least 5 points.

The scores of general SCI journals are as follows:

First, the impact factor now refers to the average citation rate of journals in the past two years, that is, the average citation number of papers published in the first two years of the evaluation year directly represents the influence and level of journals.

Second, the greater the impact factor, the greater the impact of the journal, and the higher the quality and level of the journal. Journals with high impact factors are often core journals with high paper quality or journals with strong international characteristics. However, it is difficult to compare and evaluate SCI journals between different disciplines.

Because the Literature Information Center of China Academy of Sciences divides the journals published by JCR (Journal Citation Report) into 13 categories, each category of journals is divided into four regions according to their impact factors and cited frequency, and the journals are ranked from high to low, among which the journals in the first region plus a few journals in the second region are defined as top-level journals.

SCI papers published in 1 zone and zone 2 are generally considered as important achievements in this field. The score of 1 region is also relatively low. For example, Radiology, the top journal in the field of radiation, has an impact factor of only 5.726. So we can't just look at the influence factors to evaluate the influence of this journal. You should also learn from SCI periodical division, and you can check the impact factors of periodicals through MedSci tool.

Thirdly, if the participating journals are included in the SCI retrieval system, they are SCI journals. The so-called score (impact factor) does not refer to the impact factor of the paper, but the impact factor of the journal. It is a score that is comprehensively calculated according to many factors such as the grading and grade of previous published documents cited by other articles.

Fourth, SCI was selected by Thomson with a high score of at least 5 points.

Impact factor (IF) is one of the data in the Journal Citation Report (JCR) produced by Thomson Reuters. That is, the total number of cited papers published by a journal in the first two years of the reporting year (JCR year) divided by the total number of papers published by the journal in these two years. This is an internationally accepted periodical evaluation index.

The impact factor has become a general index of periodical evaluation in the world. It is not only an index to measure the usefulness and exhibition of periodicals, but also an important index to measure the academic level of periodicals and even the quality of papers. The influence factor is a relative statistic.

meaning

Impact factors are not the most objective criteria for evaluating the influence of periodicals. Generally speaking, the higher the impact factor, the greater the influence of the journal. For some comprehensive or important research fields, the citation rate is relatively high because of the wide range of research fields. For example, biological and chemical journals are generally more likely to have higher influence.

Although the impact factor can represent the academic quality to some extent, there is no linear proportional relationship between the impact factor and the academic quality. For example, it cannot be said that a journal with an impact factor of 5.0 is necessarily better than a journal with an impact factor of 2.0, and the impact factor does not have the function of accurately and quantitatively evaluating academic quality.

Some domestic scientific research institutions often use the number of cumulative impact factors or single impact factors as quantitative standards when evaluating scientific research performance. Some researchers may not be promoted or rewarded because of the difference of influence factors of 0. 1, which is absolutely undesirable.

Impact factor (abbreviated as IF) refers to the frequency at which articles in a certain journal are cited in a specific year or period, and is an important indicator to measure the influence of academic journals. It was founded by eugene garfield, the founder of institute for scientific information (ISI) in the 1960s, and has brought a series of major innovations to the development of bibliometrics since then.

References:

Baidu Encyclopedia-Influencing Factors