Why would a nurse researcher choose to use a correlational design for a nonexperimental study?
a. It represents an efficient and effective method of collecting a large amount of data about a problem.
b. Many questionnaires and instruments are already developed and have been determined to be valid and reliable.
c. Generalizability is greater than for results of studies using experimental designs.
d. It allows flexibility in the manipulation of more than one variable.
ANS: A
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A A correlational design permits collection of a large amount of data about a problem.
B Questionnaires and instruments are used in all levels of research, not only for correlational studies.
C Experimental studies are usually considered to have a stronger design and to be generalizable if sampling is appropriately designed.
D No variable is manipulated in a correlational study because it is considered nonexperimental.
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