The research goal and purpose can be expressed in either of two ways: as a thesis statement or as a research question.
Thesis Statement
For example, a thesis statement could be: Music benefits both society and the individual in a number of practical ways.
Research Question
You will often begin with a couple of words, develop a more focused interest in an aspect of something relating to these words, then begin to have questions about the topic.
For example:
Below are links to web sites to assist you in developing a thesis statement:
Dartmouth University: Developing Your Thesis
Indiana University: How to Write a Thesis Statement
These web tools can be used to help you formulate your Thesis Statement: