After writing the background to the study and the statement of the problem, the next section is to state the purpose of the study. The purpose of the study is the same as the general objective of the problem.
The purpose is followed by specific objectives of the study and the research questions. Some institutions only write one of this. With the purpose, you may not need to write the objectives of the study. In contrast, there are others who will require all the three to be written. Make sure your structure is as per the approved structure in your discipline.