please answer each questions individually using citation for each answer.
1.Describe and discuss validity and reliability. Identify the threats to experimental validity. How would you go about designing an experimental study that will control for/reduce any potential threats to validity and reliability in your study? Provide at least two reliable references used to justify your responses.
2.A good experimental design serves three purposes, what are those three purposes? Identify a research project that utilizes a quantitative method design. Explain how you would determine the validity and reliability to both the design and the methods of your research.
3. When should you use qualitative methods when conducting counseling research? Provide at least two examples in your response as well as rationale.
4. What is the difference between clinical significance and statistical significance? How might these concepts be applied to program evaluation? Give an example of an instance in which you might be torn between two types of significance in the reported results of research. What are some other types of statistical evaluations that help to sort out the true significance of clinical research findings? Provide at least two scholarly references for your discussion and justifications.