This document discusses different types of purpose statements for research studies. It provides examples of qualitative and quantitative purpose statements and outlines what each should include. A qualitative purpose statement should describe the central phenomenon, participants, and research site. It uses words like describe and understand. A quantitative purpose statement identifies the independent, dependent, and other variables, participants, research site, and theory being tested. It connects the variables and provides definitions. Sample scripts are given for writing each type of purpose statement.