journal-metrics-guide
Installation
SKILL.md
Journal Metrics Guide
A skill for understanding, comparing, and responsibly using journal-level metrics including Impact Factor, CiteScore, SJR, SNIP, h5-index, and Eigenfactor. Covers where to find each metric, how they are calculated, their limitations, and how to select appropriate journals for submission.
Overview of Major Metrics
Metric Comparison
| Metric | Provider | Formula Basis | Window | Free? |
|---|---|---|---|---|
| Impact Factor (JIF) | Clarivate (JCR) | Citations to articles / citable items | 2 years | No |
| 5-Year IF | Clarivate (JCR) | Same, extended window | 5 years | No |
| CiteScore | Scopus/Elsevier | Citations / documents | 4 years | Yes |
| SJR | Scopus/SCImago | Prestige-weighted citations | 3 years | Yes |
| SNIP | Scopus/CWTS | Citation potential normalized | 3 years | Yes |
| h5-index | Google Scholar | h-index of articles published in last 5 years | 5 years | Yes |
| Eigenfactor | Clarivate | Network citation influence | 5 years | Yes |