Week 1 Discussion

Respond to the following:

• On the basis of what you learned in the readings, define the terms "sample" and "population" and describe some of the advantages and disadvantages of using a sample compared to a population. Support your reasoning with examples.
• A researcher is studying the effects of caffeine on exam scores of college students. In this study:
  • What would be the population and sample of this research? Extrapolate your views of the advantages and disadvantages of samples and populations to this example.
  • Why would the researcher want to use a sample or a population in this study?
  • When responding to your classmates' posts, comment on the examples that they provided to illustrate the advantages and disadvantages of a sample compared to a population. What advantages and disadvantages can you add?
  • Do you agree with your classmates regarding what should be used in this study—a sample or a population? Comment on the reasons they provided and explain why you agree or disagree with them.

Justify your answers with appropriate reasoning and research from your textbook and course readings. Start reviewing and responding to at least two of your classmates as early in the week as possible. You can ask technical questions or respond generally to the overall experience. Be honest, clear, and concise. Always use constructive language, even in criticism, to work toward the goal of positive progress. Using questions and seeking clarifications are good ways to make your reviews substantive!