Chapter 3 Methodology Research Design The case study utilized a prospective descriptive. A prospective study watches for outcomes, such as the development of a disease, during the study period and relates this to other factors such as suspected risk or protection factor(s). The study usually involves taking a cohort of subjects and watching them over a long period. The outcome of interest should be common. All efforts should be made to avoid sources of bias such as the loss of individuals to follow up during the study. The researcher follows the participants and measures or observes the behavior of the participants. Depending on the use of randomization, the prospective design is categorized into clinical trials or cohort design. (Hae Jae Cho 1997). The researcher waits for the future events in both designs. In the case study a patient diagnosed with cholelithiasis. This is in fact that cholelithiasis is an evident disease condition that most of individuals are afflicted with. Through this study, it may identified most possible ways and outcomes for its prevention and control. Sample and Sampling Technique The researcher has chosen patient diagnosed with cholelithiasis as the sample to be studied. This follows the purposive sampling in which the criteria are set in finding the sample of the case study. It was based on researcher’s knowledge about the population can be used. This study select a client who have diagnosed with cholelithiasis because they have the potential and have enough knowledge under study. Data Gathering Procedure The researcher gathered the data through interview and document using information from the patient as well as from significant others. Permission for the case study conduct was sought to immediate and respective authorities. The researcher made a point that the information that was collected were treated with confidentiality. Findings based on the data were all treated with scientific basis inquiry to generate a concrete evidence. It is important in such a manner that any inconsistency may affect the outcome of the study.