The nurse is critiquing a research study that involves subjects undergoing chemotherapy for breast cancer
Which finding would meet a criterion for inferring causality between performance of exercise and adaptive behavior of the subjects receiving chemotherapy?
a. Adaptive behavior began before the exercise program was initiated.
b. Adaptive behavior occurred in the control group over time.
c. The level of adaptive behavior increased in direct proportion to an increase in the intensity of the exercise.
d. No difference in adaptive behavior was observed between subjects in the experimental group and subjects in the control group.
ANS: C
Feedback
A A change in the dependent variable before treatment began would interfere with a cause-and-effect explanation of change.
B A change in adaptive behavior in the control (no treatment) group would interfere with a cause-and-effect explanation of change.
C Causality is supported by a clear proportional change in the dependent variable (adaptive behavior) following a clear proportional change in the independent variable (exercise).
D A lack of difference between groups would indicate that the independent variable (treatment) was not causally related to change in the dependent variable.
You might also like to view...
A female client receiving methotrexate for the treatment of rheumatoid arthritis is given a prescription for trimethoprim and sulfamethoxazole (Bactrim DS). The client returns to the physician's office feeling worse than before
She now has a cough and unusual bruising on the extremities. The physician orders a complete blood count and a complete metabolic profile. Which test results would the nurse expect to find? Select all that apply. A) Increased hemoglobin B) Decreased number of white blood cells C) Increased number of red blood cells D) Decreased number of platelets E) All values should be within normal limits
The school nurse is working with several teenagers in gym class. Which of the following individuals would the nurse know is meeting the age-appropriate recommendations for physical activity developed by the Centers for Disease Control?
1. A 17 year old who runs at a fast pace for 30 minutes 5 times per week and practices yoga for 30 minutes 2 times per week 2. A 16 year old who swims for 60 minutes 5 times per week and jogs for 60 minutes the other 2 days per week 3. A 15 year old who lifts moderately heavy weights 15 minutes 3 times per week 4. A 13 year old who speed-walks 60 minutes 5 times per week
A patient who is an active alcoholic is admitted to the hospital for surgery. The nurse reviewing orders for this patient would be correct to question which postoperative medication for this pa-tient?
a. Acetaminophen b. Diazepam c. Morphine d. Thiamine
Why is the client with polycythemia vera at an increased risk for a myocardial infarction?
A. The rapid synthesis of cells greatly increases metabolism. B. The abnormal hemoglobin in the erythrocytes inadequately oxygenates the myo-cardium. C. The increased number of erythrocytes increases blood viscosity and the workload of the heart. D. The disease is most prevalent among men in their 60s and 70s who have other conditions that damage the heart.