Dissertation vs Thesis: What Is the Difference and Which Do You Need?

If you have just been told you need to complete a dissertation or a thesis and you are not entirely sure what either involves, you are not alone.

The Basic Distinction

In the United Kingdom and across most of Europe, a dissertation is the major research project produced at undergraduate or taught postgraduate level. A thesis is the extended research document produced as the primary output of a doctoral programme. In the United States the terminology is reversed.

What Is a Dissertation?

A dissertation is the culminating research project of an undergraduate or postgraduate taught degree. It typically runs between 8,000 and 15,000 words at undergraduate level and 15,000 to 25,000 words at Masters level. Its purpose is to demonstrate that you can conduct independent academic research.

What Is a Thesis?

A doctoral thesis is substantially larger and more ambitious. It is the primary output of a PhD programme, typically between 70,000 and 100,000 words, and must make an original contribution to knowledge in its field. This is the fundamental distinction: while a dissertation demonstrates research skills, a doctoral thesis produces new knowledge.

Key Differences

In terms of scope, a dissertation is 8,000 to 25,000 words while a doctoral thesis is 70,000 to 100,000 words. In terms of purpose, a dissertation demonstrates research competence while a thesis contributes new knowledge. In terms of examination, a dissertation is assessed by marking while a thesis is defended through the viva voce oral examination.

Common Challenges at Each Level

Undergraduate dissertation students most commonly struggle with narrowing their topic and managing time across a long project. Masters students face greater challenges around methodological rigour. Doctoral students face the challenge of sustaining focus across a multi-year project and defending an original contribution to knowledge.

How CampusScribe Supports Students

CampusScribe provides expert support for students at every level from undergraduate dissertation proposals through to doctoral thesis editing. Our team includes PhD-qualified specialists who have themselves produced doctoral theses.

Conclusion

A dissertation demonstrates research competence. A doctoral thesis contributes new knowledge to a field. If you need expert help with your dissertation or thesis, CampusScribe is here. Place your order today.

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