Review of Research Designs

Hi,I need help with the following questions.

Qualitative Research

1.How do qualitative and quantitative approaches to research differ?

2.What is the value of qualitative research for nursing practice?

3.Name and describe the characteristics of the three criteria for judging scientific rigor in

qualitative research.

4.How can triangulation increase the effectiveness of qualitative research?

5.Describe several characteristics of the phenomenological, grounded theory and

ethnographic methods of research.

Quantitative Research

1.What are common threats to the internal validity of a study?

2.What conditions affect the external validity of a study?

3.What is the major difference between experimental and quasi-experimental designs?

4.What factors in clinical research may preclude the use of true experimental designs?

5.Identify and describe three types of quasi-experimental designs.

6.Under what circumstances would you use a non-experimental vs. experimental

design?

7.What would you consider in deciding whether to use a cross-sectional versus longitudinal

design?

8.What are several advantages to the use of a correlational research design?