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Research impact and visibility: Journal impact

Responsible use of publication metrics

Publication metrics when evaluating journals are not intended to evaluate an individual article or researcher, as it informs only the average visibility of a journal.

Quantitative publication indicators can be used to support qualitative expert assessment. When doing assessment it is important to take into account multi-disciplinarity and differences across disciplines. Expert assessment should be used for evaluating an individual researcher as the main method of assessment.

Read more from national recommendation: Good practice in researcher evaluation. Recommendation for the responsible evaluation of a researcher in Finland (includes also: Recommendations for responsible use of research metrics).

Publication Forum (JUFO)

Publication Forum (in Finnish often referred to as JUFO) evaluates Finnish and foreign academic publication channels. Publication Forum operates under the auspices of the Federation of Finnish Learned Societies (TSV). The three-level classification rates the major foreign and Finnish publication channels of all disciplines.

Publication Forum ratings

  • disseminate information on the impact and prestige of the scientific publication channels
  • handle humanities and social sciences more equally than citation analyses
  • are meant to evaluate large publication volumes only, not suited for the evaluation of the merits of an individual researcher
  • are updated regularly
  • the review of ratings is done once every four years by 23 field specific panels

Publication Forum classification is used as a quality indicator of the research output produced by universities within the university funding model established by the Ministry of Education and Culture. Among the appropriation criteria, scientific and other publications account for 13 per cent of the basic funding to universities.
Source: Publication Forum

Scopus indicators

SJR, SNIP and CiteScore can be seen in the context of Scopus journals (Sources - Browse sources). You can compare sources.

SJR indicator (SCImago Journal Rank)

  • measures the scientific prestige of a journal among other journals
  • estimates the journal impact as the average number of weighted citations for each article in the journal
  • weights citations based on the prestige of the citing journal
  • calculated using citation data from Scopus
  • based on three-year citation data
  • takes into account all types of journal articles, not only research and review articles
  • normalizes for differences in citation behavior between subject fields
  • max 33 % journal self-citations are included

SNIP indicator (Source Normalized Impact per Paper)

  • measures the contextual citation impact of a journal
  • based on Scopus data
  • based on three-year citation data
  • takes into account research articles, review articles and conference articles, but not all publication types unlike JIF 
  • differences in citation patterns among disciplines are considered
  • possible to compare journals from different disciplines unlike JIF
  • journal self-citations are included

CiteScore

  • based on Scopus data
  • an alternative to Impact Factor
  • three-year citation window
  • besides articles and reviews takes into account in calculation also other document types such as letters or editorials

 

How to calculate CiteScore

CiteScoren laskukaava

Journal Citation Reports - Impact Factor (JIF)

Journal Citation Reports is a part of the Web of Science database which tells the journal impact factors (JIF).

Impact Factor score

  • tells the average number of citations for each article in the journal 
  • based on two-year citation data - available five-year citation data
  • can be provided without journal self-cites
  • differences in citation patterns among disciplines are not considered
  • all citations are weighted equally regardless of the prestige of the citing journal
  • is not meant for evaluating an individual researcher

Impact Factor (JIF) - calculation

                         Journal impact factor calculation

Cabells service

The Cabells service supports the evaluation of scientific journals. The service includes a Journalytics section (formerly Journal Whitelist) and a Predatory Reports section (formerly Journal Blacklist).

The Journalytics module contains essential information on over 11 000 journals. You can search for journals in your own field and filter the results by relevant criteria.

The Predatory Journals module provides information on predatory journals, whose scientific value and publication processes are questionable.

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