Department of Neurology, Harvard University · Department of Epidemiology, Harvard University

Radar chart profiling Department of Neurology, Harvard University and Department of Epidemiology, Harvard University on output, citations, h-index, impact, reach and breadth — A profile, not a scoreboard: further out means more of that measure, never better. Each axis is scaled to the larger of the two on a log scale.

Output	Department of Neurology, Harvard University	Department of Epidemiology, Harvard University	Larger
Indexed articlesDocuments attributed to the organisation.	19,456	17,780	Department of Neurology, Harvard University
CitationsCitations those documents have received.	1,667,209	1,310,236	Department of Neurology, Harvard University
Articles in 2-star journalsOutput placed in the second tier of journals.	5,013	5,991	Department of Epidemiology, Harvard University
Articles in 3-star journalsOutput placed in the top tier of journals.	525	457	Department of Neurology, Harvard University

Reach	Department of Neurology, Harvard University	Department of Epidemiology, Harvard University	Larger
Peer-reviewed h-indexDepth of the cited record rather than its recent average.	401	354	Department of Neurology, Harvard University
h-index (all documents)The same across every indexed document, not only peer-reviewed ones.	464	398	Department of Neurology, Harvard University
2-year impactCitations in the last two years per citable item.	—	—	—
Score C tierWhere the prestige-weighted citation ratio places it among all organisations of its type. Tier 1 is the top 5%.	1	2	Department of Epidemiology, Harvard University

Spread of the work	Department of Neurology, Harvard University	Department of Epidemiology, Harvard University	Larger
Journals citing the workHow widely the output is picked up, counted in distinct journals.	21,522	21,691	comparable
Disciplines citing the workHow far outside its own subjects the output travels.	148	148	comparable
Journals published inDistinct journals the organisation has appeared in.	6,141	5,862	comparable
Disciplines published inHow broad the research programme is.	273	270	comparable
Open-access shareShare of articles under an open licence, among those whose licence could be read.	47.6%	43.4%	Department of Neurology, Harvard University

How the work is cited over time	Department of Neurology, Harvard University	Department of Epidemiology, Harvard University	Larger
Self-citation rateCitations whose citing paper comes from the same organisation.	3.4%	4.4%	Department of Epidemiology, Harvard University
Citation half-lifeYears over which half of an article's citations arrive. A longer half-life means work that keeps being read.	19.24	19.50	comparable
Immediacy indexHow quickly citations start arriving after publication.	1.22	1.02	Department of Neurology, Harvard University

This describes the indexed record of each school and nothing else. The two are very often of different sizes, and most of the measures above grow with size, so a larger figure means a larger organisation before it means anything else. Nothing here ranks one against the other. Full detail: Department of Neurology, Harvard University · Department of Epidemiology, Harvard University · compare a different pair.

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What this page is

This is a description, not a ranking. Two schools are put side by side so the differences between them are visible — how much they publish, how widely it is cited, how far it travels and how it ages. No measure here is presented as better than another, and no overall verdict is drawn, because there is no single question a school comparison answers the way "where should this paper go" is answered for journals.

Reading the chart

The chart summarises six of the measures below. It is a profile, not a scoreboard: further out means more of that thing, never better.

Output — indexed articles attributed to the organisation.
Citations — citations those articles have received.
Depth — the peer-reviewed h-index, which describes the depth of the cited record rather than its recent average.
Impact — the 2-year impact: citations in the last two years per citable item. This is the one axis that does not simply grow with size.
Reach — how many distinct journals cite the work, i.e. how widely it is picked up.
Breadth — how many distinct disciplines the organisation publishes in.

Each axis is scaled to the larger of the two on a log scale. Four of the six grow with size, so a large organisation beside a small one will look larger on most of them — that is the difference in scale being shown, not a difference in quality.

Comparable schools

Department of Neurology, Harvard University vs Department of Epidemiology, Harvard University