One of the main differences between a thesis and a dissertation paper is the main purpose. A thesis is something that is required from people who would like to graduate or those who would like to get a master's degree.
The main purpose of a thesis is to help the professor know if the student already understands his current field of study. A dissertation is known to be something that would need to be done by a student who is working on getting a doctorate degree. The dissertation would need to focus on a specific type of research.
Dissertation and Thesis are seen as the same thing in some universities, but there are still a lot of differences between them.
In Thesis, you have to conduct your research, which has to be original, and when writing your thesis, you have to include the hypothesis. Everything about your thesis should be about the research you conducted. You don’t need to write a thesis as a master student but must be written as a Ph.D. student.
For Dissertation, you have to synthesize any information that is collected. In a dissertation, you can post your thought; when you are writing a dissertation, you have a good knowledge of the recent discoveries. The dissertation is an analysis of the existing literature.
Although the thesis and dissertation are most times thought to be the same in some universities, however, there are some differences between the two. A thesis is a research paper submitted after your research work at the end of your master's degree. It has to be new and original since you are expected to conduct a research work about a subject matter.
In contrast, a dissertation is a research paper written by students at the end of their doctoral degree or Ph.D. program. When writing a dissertation, a student is expected to go through the already existing literature. After this stage, such an individual will need to combine and reproduce all the information to give new research work.
Also, hypotheses are included when writing a thesis. In the case of a dissertation, your final conclusion about what you have read and discovered should be included too. Invariably, while a dissertation is simply the analysis and reproduction of the already existing literature, a thesis is adding to the already existing literature.