In Lesson 28, we have defined a sample is a subset of the population that is chosen for participation in a study. Determining the adequate sample size is the most important decision that a researcher needs to make. Contrary to popular opinion, determination of sample size is a scientific process that requires the researcher to think through it carefully based on the research problem.

This lecture will take you through the five main strategies that a quantitative researcher may use to determine the sample size. Before the strategies, the lesson will also discuss the factors to consider when determining the sample size.