This report delves into the research methodologies employed in business, using the case study of De Witte et al. (2010) as a practical example. It examines key aspects such as sample size determination, highlighting the importance of a reliable and valid sample for generalizing research findings. The report also discusses the simple random sampling method used by De Witte et al. (2010) and its implications for cost and generalizability. Furthermore, it explores the measurement of variables, emphasizing the significance of validity and reliability in research. The report also considers the collection of demographic data and its role in categorizing the sample size. Finally, it analyzes the descriptive research design used in the case study, contrasting it with exploratory and explanatory designs. Desklib provides access to similar solved assignments and past papers for students.