A nurse researcher would want to use a Cronbach's alpha coefficient to establish the internal consistency of an instrument in which case?
a. When questions are open-ended
b. When questions/statements demand a yes or no response
c. When the instrument uses a Likert-type response scale
d. When the instrument is designed to measure more than one concept
ANS: C
Feedback
A Open-ended questions elicit textual data that are content analyzed (qualitative analysis).
B KR-20 provides estimates of homogeneity used for instruments that have a dichotomous response format.
C Cronbach's alpha coefficient provides estimates of homogeneity when instruments are scaled with ordinal responses.
D Cronbach's alpha coefficient does not apply to this answer.
You might also like to view...
Which statement best describes self-concept? An individual's:
1) Understanding of how other's perceive him. 2) Evaluation of himself. 3) Overall view of himself. 4) Perspective of his role in society.
The nurse is planning discharge teaching for a client who has peripheral neuropathy of the lower extremities. Which instruction does the nurse include in the teaching plan?
a. "Cut all calluses and corns from your feet as soon as you notice them." b. "Your balance will be steadier if you go barefoot while at home." c. "Use a thermometer to check the temper-ature of bath water." d. "Avoid using lotion on the feet and legs."
James has hypothalamic-pituitary-adrenal axis suppression from chronic prednisone (a corticosteroid) use. He is at risk for what type of adverse drug reaction?
1. Type B 2. Type C 3. Type E 4. Type F
The nurse performing an eye examination will document normal findings for accommodation when
a. shining a light into the patient's eye causes pupil constriction in the opposite eye. b. a blink reaction follows touching the patient's pupil with a piece of sterile cotton. c. covering one eye for 1 minute and noting pupil constriction as the cover is removed. d. the pupils constrict while fixating on an object being moved closer to the patient's eyes.