Generally speaking, a hypothesis is a predictive claim stated by the researcher based on the experience he/she has. In other words, it is a statement that can be proved or disapproved based on future research. There are two different types of dissertation hypotheses. The first one is where the writer has one dependent variable and one independent one. This type can be compared to billboard advertising that leads to the sales increase. In such a case, the writer deals with the independent variable (advertisement) and dependent variable (sales). Another type supposes more than one dependent or independent variables. The choice of a hypothesis in a dissertation hypothesis example depends mainly on the topic of the research.