What is the study design? Is the design appropriate for the research question/hypothesis? Why is it appropriate or inappropriate?

Effectiveness of a staff resilience program in a pediatric intensive care unit, which is Appendix C

Answer the following questions in APA and provide reference page.
Using the study, Effectiveness of a staff resilience program in a pediatric intensive care unit, which is Appendix C in your text, answer the following.

1. Is this a qualitative or quantitative study?
State your rationale for your answer.

2. What is the study design?
Is the design appropriate for the research question/hypothesis? Why is it appropriate or inappropriate?

3. What are some possible threats to internal validity?