R0050/2026-03-31-02/Q002/S05

Research	R0050 — Journalism Disciplines
Run	2026-03-31-02
Query	Q002
Search	S05

WebSearch + WebFetch — OCEBM levels of evidence and CASP checklists

Summary

Field	Value
Source/Database	WebSearch, WebFetch
Query terms	"OCEBM Oxford Centre Evidence-Based Medicine levels of evidence hierarchy"; "CASP Critical Appraisal Skills Programme checklist evidence quality assessment"
Filters	None
Results returned	20
Results selected	2
Results rejected	18

Selected Results

Result	Title	URL	Rationale
S05-R01	OCEBM Levels of Evidence — CEBM Oxford	https://www.cebm.ox.ac.uk/resources/levels-of-evidence/ocebm-levels-of-evidence	Primary source for OCEBM 2011 levels hierarchy
S05-R02	CASP Checklists — Critical Appraisal Skills Programme	https://casp-uk.net/casp-tools-checklists/	Primary source for CASP study-type checklists

Rejected Results

Result	Title	URL	Rationale
S05-R03	Various (18 results)	Various	Library guides, medical education materials, and general EBM overviews without novel content

Notes

OCEBM and CASP were examined for novel contributions beyond GRADE and Cochrane. Both are closely related to the reference set frameworks.