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    Observational Studies

    Observational Studies is Scopus-indexed (Q3, CiteScore 1.7), DOAJ. Published by University of Pennsylvania Press.

    Checked against the index lists dated 4 October 2026.

    ISSN 2767-3324Verify ISSN ↗

    Publisher: University of Pennsylvania Press

    Scopus · Q3Open Access
    1.7
    CiteScore 2025
    Scopus
    Q3
    Best quartile
    rank 412 of 680 · 39th pctile
    2
    Indexed in
    major indexes

    Cost to publish: Checking DOAJ for article charges…

    ScopusElsevier Scopus
    Status
    Active
    Coverage
    2019–present
    Source type
    Journal
    Open access
    Yes
    CiteScore
    1.7
    SJR · SCImago
    0.344
    Q3 SJR quartile
    H-index
    9
    Best quartile
    Q3 · 39th pctile
    Subject areaRankPctileQ
    Applied Mathematics412 / 68039thQ3
    Modeling and Simulation248 / 39737thQ3
    Statistics and Probability192 / 30336thQ3
    Numerical Analysis61 / 9334thQ3
    Computer Science Applications698 / 102231stQ3
    View this source on Scopus.com
    DOAJDirectory of Open Access Journals (live)
    Listed in DOAJ
    Open accessFully open access, peer reviewed

    Not listed in: Web of Science, ABDC, ABS / AJG, FT50, UT Dallas, ONOS (subscription), ONOS (APC covered)

    Quick answers

    Is Observational Studies indexed in Scopus?

    Yes — actively indexed in Scopus, coverage 2019–present, best quartile Q3, CiteScore 1.7.

    What quartile is Observational Studies in Scopus?

    Observational Studies is Q3 in Applied Mathematics (rank 412 of 680), Q3 in Modeling and Simulation (rank 248 of 397) and Q3 in Statistics and Probability (rank 192 of 303), by CiteScore 2025. It is ranked in 5 subject areas in all.

    What is the impact factor of Observational Studies?

    Observational Studies is not in the Web of Science Core Collection (SCIE, SSCI, AHCI or ESCI), so Clarivate publishes no Journal Impact Factor for it. Its Scopus CiteScore is 1.7, quartile Q3, 39th percentile. Any "impact factor" quoted elsewhere is not the Clarivate metric. Its SCImago Journal Rank (SJR, a free Scopus-based metric) is 0.344, quartile Q3, with an H-index of 9.

    Who publishes Observational Studies and what is its ISSN?

    Observational Studies is published by University of Pennsylvania Press. Its ISSN is 2767-3324.

    Is Observational Studies in Web of Science?

    No — it is not currently in the Web of Science core collections (SCIE, SSCI, AHCI or ESCI).

    Is Observational Studies open access?

    Yes — it is an open-access journal, listed in DOAJ.

    How well cited is Observational Studies? — open metrics via OpenAlex

    Observational Studies has an h-index of 16 and a 2-year mean of 1.83 citations per paper (OpenAlex). Its Scopus CiteScore is 1.7, quartile Q3. On 2-year citations it ranks #189 of 621 Scopus journals in Applied Mathematics.

    16
    h-index
    1.83
    2-yr mean citations
    29
    i10-index
    225
    works indexed
    1,157
    total citations
    2-yr mean citations, among Scopus journals in the same subject
    #189 of 621 Top 31% Applied Mathematics
    #146 of 323 Top 46% Modeling and Simulation
    #67 of 294 Top 23% Statistics and Probability
    Papers published per year
    025502017: 12 papers1220172018: 19 papers1920182019: 11 papers1120192020: 14 papers1420202021: 36 papers3620212022: 15 papers1520222023: 34 papers3420232024: 7 papers720242025: 20 papers2020252026: 21 papers so far212026*

    Observational Studies published 20 papers in 2025; its busiest recent year was 2021 with 36. 2026* is the year so far.

    Main topics
    Advanced Causal Inference TechniquesStatistical Methods and InferenceStatistical Methods and Bayesian InferenceBayesian Modeling and Causal Inference

    h-index, i10-index and 2-year mean citedness are open, licence-clear metrics from OpenAlex — not a proprietary impact factor. The subject rank counts only journals that OpenAlex has a figure for; it is not a Scopus or Clarivate ranking. Updated 2026-10-14.

    Who publishes in Observational Studies? — latest 74 articles, 2021–2026

    In its latest 74 research articles (2021–2026), authors are most often from United States (77.5%), Canada (3.4%) and Sweden (2.7%). More than half of recent authorship comes from one country.

    Author countriesUnited StatesUnited States77.5%CanadaCanada3.4%SwedenSweden2.7%ChinaChina2.7%SwitzerlandSwitzerland2%ItalyItaly2% Most frequent institutions (papers)University of California, BerkeleyUniversity of California, Berke…8University of PennsylvaniaUniversity of Pennsylvania6Columbia UniversityColumbia University5Yale UniversityYale University5New York UniversityNew York University4

    Countries are counted fractionally, so a paper by authors from two countries counts half to each.

    Are there integrity warnings for Observational Studies? — indicators, not proof of misconduct

    Scopus status: Active. No retracted papers are recorded. The Problematic Paper Screener flags none of its papers. These are indicators to check, not findings against the journal.

    • Scopus statusActive
    • Retracted papers None recorded
    • Problematic Paper Screener flags None flagged
    • Author concentration77.5% of recent authorship from United States

    Retractions from OpenAlex; flags from the Problematic Paper Screener (Cabanac, Labbé & Magazinov, CC BY), 2026-09-21 export. A flag marks a paper for a closer look; it is not a finding against the journal.

    Official sources & links

    Journal website ↗ Scopus source ↗ DOAJ ↗ ISSN Portal · 2767-3324 ↗

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