There are various designs (i.e. fixed, flexible, and mixed) that help to shape and form one’s research. Each design has various methods associated with the design. Considering the three designs (fixed, flexible, and mixed), please respond to the following: 1. Describe the three designs and when is it appropriate to use each design? 2. How are the designs similar? 3. How are the designs different? 4. What specific methods are related to each of these designs? Provide an annotated bibliography on two peer reviewed resources (within last five years).