ImpaQ Ecosystem•Clarivate, Scopus & CORE Data
Clarivate WoS 2024 / 2025 Data
IMPAQ
WoS ESCI Q4Scopus Q4SCImago #23,142Diamond OAHybrid

JOURNAL OF EXTENSION

Identifier (ISSN):0022-0140(Print)/1077-5315(Online)
•
Publisher:Extension Journal, Inc.
Clarivate JCR Index Advisory: Active (ESCI)
Clarivate IF (2026)
0.4↑ +0.1
Journal Impact Factor
IF Trend↓
WoS Quartile
Q4
WoS ESCIJCR Quartile
Clarivate WoS JCR
WoS Categories↓
JCR Release Date: 2026-06-17

Impact Factor Trend (2023–2026)

Clarivate IF trend for JOURNAL OF EXTENSION

WoS Q4
00110.320230.420240.320250.42026
Annual Impact Factor Metric
Current (2026):0.4
Scopus SJR & RankScopus Q4
0.182
#23,142

SCImago Journal Rank citation prestige weighting

Scopus Year: 2025
H-Index (2025)
40

40 papers with at least that number of citations each

WoS: ESCIQ4
Self-Citation Rate25%
Safe Level (< 15%)Warning Level (> 20%)
Self-citation below 15% indicates strong scholarly independence.
Volume & Open AccessHybrid
62articles/year
35.93% Gold OA•97.92% Original Research

Aims & Scope

The Journal of Extension (JOE) expands and updates the research and knowledge base for U.S. Extension professionals and other outreach educators to improve their effectiveness. JOE also serves as a forum for emerging and contemporary issues affecting U.S. Cooperative Extension education. JOE is a refereed journal. Feature, Research in Brief, and Ideas at Work submissions undergo double-blind review, and Commentary and Tools of the Trade submissions are reviewed by the editor, Dr. Laura Hoelscher.

Topics Covered (Recognized by AI)
Political science74%Computer science66.4%Law64.9%Economics64.9%Biology64.1%Psychology53.4%Business53.4%Medicine50.4%Programming language48.9%Ecology43.5%Extension (predicate logic)39.7%Geography39.7%Sociology39.7%Engineering35.1%History34.4%Public relations34.4%Economic growth33.6%Archaeology31.3%Physics29.8%Marketing29.8%Medical education29.8%Mathematics29.8%Geology20.6%
Primary Research Areas

WoS Categories & Quartiles

Detailed JCR / JCI category rankings and quartile breakdown from Clarivate

Clarivate JCR & JCI
JCRESCI2026

EDUCATION & EDUCATIONAL RESEARCH

Q4
Rank633/760
IndexESCI
JCIESCI2026

EDUCATION & EDUCATIONAL RESEARCH

Q4
Rank640/762
IndexESCI

Annual Historical Statistics & Publications

Track annual publication volume, total citations, and Impact Factor evolution

12 year
2026Latest
IF0.4
Articles / Year20
Total Citations2
2025
IF0.3
Articles / Year80
Total Citations19
2024
IF0.4
Articles / Year131
Total Citations66
2023
IF0.3
Articles / Year64
Total Citations84
2022
IF—
Articles / Year77
Total Citations122

SCImago & Scopus Journal Intelligence

Global SCImago ranking, SJR prestige index, Scopus coverage, and societal policy impact

Rank #23,142Scopus Q4Diamond OASCImago Profile
Scopus Coverage:1976, 1996-2025
Scopus Broad Areas:Social Sciences
Scopus Citation Rank (SJR)Q4
0.182

Weighted prestige citation metric per document indexed in the Scopus database.

Quartile: Scopus Q4
Citations / Doc (2 years)
0.46

Average citations received per document published in the 2-year window.

2-Year Citation Window
Estimated Publication Fee (APC)
100% Free

Diamond Open Access: Authors publish completely free of charge with zero author-facing fees.

Diamond Open Access

Scopus 3-Year Publication & Citation Window

3-Year Citations112
3-Year Documents244
Citable Documents244

Aggregated from Scopus database across the 3-year SJR evaluation window.

Societal Impact & Inclusivity (SCImago)

Policy Citations (Overton)0

Citations in government and international policy documents

Female Author Rate62.2%

Percentage of female authors published in the journal

Real-world societal policy reach and author gender diversity tracked by SCImago.

Scopus Subject Categories

EducationQ4
Academic Metric Intelligence

Journal Metrics & Citation Visualizations

Total Cites vs Self-Cites

Evaluation of scholarly independence and citation reach

Total citations steady growth
Self-citation: 25%

Citations per Document

Citation metric windows across 2, 3, and 4 years

Cites / Doc (4 years)Cites / Doc (3 years)Cites / Doc (2 years)

Chinese Academy of Sciences (CAS) Classification

Major / minor zone classification and CAS Early Warning List history

Major Category (Broad Field):
4区 (Zone 4)Education
Minor Category (Specific Field):
4区EDUCATION & EDUCATIONAL RESEARCH
CAS Early Warning List History:
Updated annually: 2020 – 2024
2020
Not warned
2021
Not warned
2022
Not warned
2023
Not warned
2024
Not warned

Academic Intelligence Overview & Context

ImpaQ Analysis

JOURNAL OF EXTENSION (ISSN: 0022-0140) is a peer-reviewed international scholarly journal in the field of EDUCATION & EDUCATIONAL RESEARCH, published by Extension Journal, Inc. in United States. The periodical holds a Journal Impact Factor (JIF) of 0.40, ranking in quartile Q4 of Web of Science (ESCI), a Scopus SJR indicator of 0.182 (Q4), an H-index of 40.

The journal enforces rigorous peer evaluation with an annual output of approximately 62 scientific articles. In terms of accessibility and author fees, it operates under the Hybrid model with Diamond Open Access (100% free of author APC charges). It serves as a benchmark publication platform for academics, researchers, and doctoral candidates seeking global research visibility.

Publishing & Editorial Information

Detailed publisher, peer-review turnaround, and publication cycle specifications

Open Access Model
Hybrid
Publisher
Extension Journal, Inc.
Publication Language
English
Frequency
Periodic
Indexing & Databases
ESCIScopusPubMed

Similar Journals in Discipline

Journals in the same research field with comparable impact metrics

Record UUID: e3d1c6ef-01cf-46e2-a41b-d91c6f9913c2
Database Updated: 2026-10-01