Statements of purpose help the reader to understand the main thrust of your research topic. These quite commonly appear in the Scope section of your paper, where you also define what you are not going to talk about. The grammar of such sentences is usually straightforward: little complexity, standard sentence syntax, noun phrases with high-frequency key words. Some examples are listed below:
My research will give an account of the latest developments in the field.
The research focus is to analyze the relationship between X and Y.
My concern here is to show the link between…
This paper addresses the following questions:
This study examines a line of investigation instigated by Stevens (2002).
The purpose of this paper is to review recent research on market behavior.
This paper will review the research conducted on search logic.
The aim of this paper is to determine the effectiveness of blended learning.