Week 4 research

This discussion supports your understanding of the quantitative method of research and the varied elements involved in the management, interpretation and reporting of a quantitative study. In your initial post, address the following:

• Differentiate between randomized and nonrandomized approaches to sampling populations. Discuss the importance of the role of sampling when conducting research.
• Discuss the usefulness of pretesting, pilot testing, or field-testing a survey.
• Explain how response bias can influence the outcomes of a study.
• Explain why measures of dispersion and measures of central tendencies are important when doing data analysis and interpretation in an experimental study.
• Discuss the implications of using previously used instruments on the outcomes of a study.

Your initial post should be at least 250 words in length. Support your claims with examples from the required material(s) and/or other scholarly resources, and properly cite any references