Unit 1 Part 1

Question 1

What is the purpose of Level II research?
a. To define characteristics of interest of groups of patients
b. To demonstrate the effectiveness of an intervention or treatment
c. To describe relationships among characteristics or variables
d. To evaluate the nature of relationships between two variables

Answer 1

C
Level II research is concerned with describing the relationships among characteristics or variables. Level I research is conducted to define the characteristics of groups of patients. Level II research evaluates the nature of the relationships between variables. Level IV research is conducted to demonstrate the effectiveness of interventions or treatments.

Question 2

Which is the most appropriate research design for a Level III research study?
a. Epidemiological studies
b. Experimental design
c. Qualitative studies
d. Randomized clinical trials

Answer 2

B
The experimental design is the most appropriate design for a Level III study.