<human>: What are the differences between a thesis and a dissertation?
<bot>: The main difference between a thesis and a dissertation is that a thesis is typically shorter in length, usually around 50-80 pages, while a dissertation can be as long as 100-200 pages. Additionally, a thesis often focuses on one specific topic or area of research whereas a dissertation may cover multiple topics within a single field. A thesis is typically written by a student during their final year of study, while a dissertation is usually written after completing an undergraduate degree.