A nurse has defined the research question as, How does oral nutritional supplementation during dialysis treatments affect the serum albumin levels of adult patients who have chronic kidney disease Stage 5?
In this question, what is the independent variable?
a. Adult patients with chronic kidney disease Stage 5
b. Oral nutritional supplementation
c. During dialysis treatments
d. Serum albumin levels
Question 2
In a research study, what are the properties of interest that differ in value?
a. The study's variables
b. The study's concepts
c. The study's hypotheses
d. The study's assumptions