Short answer
At Cornell, a thesis is the master’s research capstone and a dissertation is the doctoral counterpart; both are scholarly works requiring completion and defense. 1 2 That distinction is not internationally portable: Canada’s University of British Columbia permits doctoral students to call their work either a thesis or a dissertation. 3
On this page
At a glance
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| Question | Thesis | Dissertation |
|---|---|---|
| Degree level at Cornell? | Master’s | Doctoral |
| Label allowed at UBC? | Master’s or doctoral | Doctoral |
| Purpose at Cornell? | Scholarly research capstone | Scholarly research capstone |
| Fixed length at Cornell? | Committee and advisor determine it | Committee and advisor determine it |
These are institutional comparisons, not a nationwide US naming rule. 1 2 3
What each thing is
Cornell treats the thesis and dissertation as degree-completing scholarly works, not merely alternative names for any long academic paper. Its policy places both in public circulation so other scholars can build on or challenge their ideas. Their shared purpose therefore includes communicating research beyond the degree process. 2
Key differences
Program level provides the clearest distinction in Cornell’s terminology: master’s versus doctoral. Expected contribution is less clearly resolved by these excerpts. Cornell assigns content and length to the committee and advisor, but the supplied text does not establish separate originality thresholds for the two labels. A stronger claim about what each must contribute would need additional evidence. 1 2
How to tell them apart
Read the degree named on the title page, then consult the institution’s terminology. Cornell’s suggested page connects the document with the degree it fulfills, and UBC requires the degree name in full. This is more informative than the title alone: a UBC document labeled thesis may be doctoral work. The limit is that degree identification does not reveal the project’s detailed contribution requirements. 1 3
Where they overlap
Both labels belong to the same broad category of scholarly research capstone at Cornell. Most basic writing and formatting rules apply to both, although abstract and filing instructions have some differences. Shared presentation requirements do not erase the degree-level distinction; they show that document preparation and academic level are separate questions. 1 2
Edge cases
A doctoral thesis is a genuine terminology edge case, not necessarily a mislabeled dissertation: UBC explicitly allows it. Structure can also complicate recognition. Cornell notes that some disciplines expect a unified document while others allow related papers as chapters, so chapter format alone cannot reliably settle the label. 2 3
Why the distinction exists
Within Cornell’s guidance, the two labels help route students to degree-specific instructions. Doctoral-only material is marked dissertation or doctoral candidates; master’s-only material is marked thesis or master’s candidates. This explains the labels’ administrative usefulness there, without establishing a historical origin or a universal difference in scholarly purpose. 1
Common misconceptions
Neither length nor the word thesis is a sufficient classification test. Cornell leaves length to academic supervisors, and UBC allows thesis for doctoral work. Likewise, Cornell’s naming pattern should not be treated as proof that every US institution follows it, or that every country uses the opposite pattern. These excerpts document particular institutions. 2 3
Examples
Hypothetical case 1: A Cornell master’s candidate prepares a research capstone. Cornell’s guidance identifies that work as a thesis. 1 Hypothetical case 2: A UBC doctoral candidate submits a title page calling the work a thesis. That label is permitted; the spelled-out doctoral degree, rather than the word thesis alone, identifies its level. 3