Difference between SCI, SCIE, and SSCI
SCI, SCIE, and SSCI are databases maintained by Web of Science (Clarivate Analytics). They index high-quality journals after strict evaluation.
1. SCI (Science Citation Index)
- Indexes core science and engineering journals
- Older and more selective database
- Contains top-level science journals
- Used mainly for natural and physical sciences
Example fields: Physics, Chemistry, Biology, Engineering
2. SCIE (Science Citation Index Expanded)
- Extension of SCI
- Indexes more journals than SCI
- Includes emerging and mid-level journals
- Most commonly referred as "SCI indexed" today
Example fields: Engineering, Computer Science, Medical Sciences
3. SSCI (Social Sciences Citation Index)
- Indexes social science journals
- Separate from science journals
- Focused on social science research
Example fields: Management, Economics, Psychology, Education, Sociology
Comparison Table
| Feature | SCI | SCIE | SSCI |
|---|---|---|---|
| Full Form | Science Citation Index | Science Citation Index Expanded | Social Sciences Citation Index |
| Field | Pure & Applied Sciences | Sciences & Engineering | Social Sciences |
| Number of Journals | Fewer (elite) | More than SCI | Social science journals |
| Impact Factor | Yes | Yes | Yes |
| Maintained by | Web of Science (Clarivate) | ||
Important Notes
- SCI and SCIE both are considered "SCI journals" in many universities
- SSCI is for social science subjects only
- All three provide Impact Factor (IF)
- All are more prestigious than normal journals
Final Summary
- SCI = Top science journals
- SCIE = Extended science journals
- SSCI = Social science journals
- All are part of Web of Science
Source: sureshtechlabs.com