In the following hypothesis, what is the independent variable?
Patients with recurrent bowel obstruction due to Crohn's disease who are assigned to be treated in an emergency room complain less frequently of pain and require less pain medication than those patients admitted, in the usual fashion, and treated on a medical floor.
a. Bowel obstruction due to Crohn's disease
b. Place treated
c. Number of complaints of pain
d. Number of doses of pain medication
ANS: B
An independent variable is a stimulus or activity that is manipulated or varied by the researcher to create an effect on the dependent variable. The independent variable is also called an intervention, treatment, or experimental variable. In this example, place treated (emergency room versus medical floor) is the independent variable.
You might also like to view...
When making a home visit, the nurse observes a newborn sleeping on his back in a bassinet. In one corner of the bassinet is a soft stuffed animal and at the other end is a bulb syringe. What is wrong with this situation?
A) The newborn should not be sleeping on his back. B) Stuffed animals should not be in areas where infants sleep. C) The bulb syringe should not be kept in the bassinet. D) This newborn should be sleeping in a crib.
Why is the Sunshine Model of ethnonursing more specific to health than other ethnography models?
a. It was created by a nurse. b. It values the point of view of the individual. c. It focuses on factors that impact health. d. It explains how various levels of culture interact.
In which of these regions of the world would the incidence of multiple sclerosis be highest?
1. Central America 2. Northeast United States 3. Africa 4. Middle East
For each characteristic listed in the following, note whether it is a characteristic of a fat
embolus (F), a blood clot embolus (BC) in the lungs, or both (B). a. Altered mental status b. Decreased Spo2 c. Petechiae d. Chest pain e. Crackles f. Increased respirations and pulse