The precision of a research design can be increased by:
A) Increasing variability associated with extraneous variables
B) Decreasing variability associated with extraneous variables
C) Holding variability associated with the independent variable constant
D) None of the above
B
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Which of the following nursing techniques are appropriate for therapeutic interaction with a client who has been diagnosed with Alzheimer's disease?
1. Setting strict time limits and rephrasing misunderstood questions 2. Encouraging verbal and nonverbal communication, while maintaining a calm demeanor 3. Correcting errors by the client and speaking in a loud clear voice 4. Using multiple memory cues and giving several directions at once
The nurse explains to a newly diagnosed epileptic client that the basic pathophysiology of epilepsy is related to
a. a period of hypoxia from sleep apnea. b. brain waves losing amplitude. c. excitation of neurons discharging in the brain stem. d. specific metabolic disturbances.
A patient with spasticity of the upper extremity after a stroke asks why a sling is not used to support the arm. Which of the following should the nurse respond to this patient with?
1. the use of a sling will reinforce the spasticity and may promote a contracture 2. a sling will alter your center of balance when standing 3. you will not be able to participate in therapy with the arm in a sling 4. the presence of a sling will make dressing difficult
A nursing professor administers three versions of a final exam to a class of students and compares the exams for reliability. This is a measure of
a. homogeneity. b. interrater reliability c. equivalence. d. test-retest reliability.