Arrange the following metrics in chronological order of their year of inception:

A. SNIP

B. CiteScore

C. Eigenfactor

D. Crindes

E. Altmetric

Choose the most appropriate answer from the options given below:

The Correct answer is C, A, E, B. D

Key Points

• Eigenfactor:​
  • Eigen factor score is a parameter developed by Jevin West and Carl Bergstrom in 2007 at the University of Washington to measure the importance of journals within the scientific community. 
  • These metrics take into account the number of times articles from specific journals have been cited in Thompson Scientific's Journal Citation Reports (JCR) over a five-year period.
  • The eigen factor approach assesses not only the total citations but also the contribution of these citations from other influential journals. 
  • Two principal scores are calculated within the Eigenfactor metrics framework:
    • the Eigenfactor score and the Article Influence score. ​
• SNIP:
  • The Source Normalized Impact per Paper (SNIP) is a metric designed to assess the contextual citation impact of a scientific journal.
  • In 2009 Professor Henk F. Moed at the Centre for Science and Technology Studies (CWTS), University of Leiden, developed SNIP.
  • It achieves this by assigning weights to citations based on the total number of citations within a specific subject field.
  • The value of a single citation is emphasized more in subject areas with fewer citations and less in areas where citations are more common.
  • SNIP differs from the well-known journal impact factor by accounting for variations in citation practices across scientific fields, enabling more accurate comparisons of citation impact between different fields.
  • Additionally, CWTS Journal Indicators offers stability intervajournal's ls to indicate the reliability of a SNIP value.
• Altmetric:
  • Altmetric, also known as altmetric.com, is a data science company specializing in tracking online mentions of published research.
  • It offers tools and services to institutions, publishers, researchers, funders, and organizations for monitoring this activity, commonly known as altmetrics.
  • European Commissioner Máire Geoghegan-Quinn recognized Altmetric in 2014 for challenging traditional reputation systems.
  • Altmetric has a history dating back to its founding by Euan Adie in 2011. 
  • Altmetric gained recognition when Adie entered an altmetrics app into Elsevier's Apps for Science competition and won, using the prize money to develop the full version of the Altmetric Explorer, released in February 2012.
• Cite Score:
  • ​CiteScore (CS) is an academic journal metric that reflects the annual average number of citations to recent articles published in a specific journal.
  • Ebsco produces CiteScore based on the citations found in the Scopus database.
  • Introduced in December 2016, CiteScore is an alternative to the Journal Citation Reports (JCR) impact factor calculated by Clarivate.
  • In a given year, a journal's CiteScore is determined by the number of citations received in that year and the preceding three years for documents published within the total four-year period.
  • This figure is then divided by the total number of published documents, including articles, reviews, conference papers, book chapters, and data papers, during the same four-year period.
  • Absolute rankings and percentile ranks are provided for each journal in its respective subject area.
• Crindes Metrics was developed in 2017.