A researcher develops a new instrument for measuring adjustment to widowhood in dependents whose spouses were killed in armed conflict
The researcher's initial instrument contains 55 items, and he wants to trim these down to 25 or 30 but doesn't want to lose any of the main concepts. What method of statistical analysis will the researcher use, in order to pare this tool down to a manageable size without loss of content?
a. Kendall's tau
b. Spearman's rho
c. Linear regression analysis
d. Factor analysis
ANS: D
Factor analysis is one of the statistical techniques designed to examine interrelationships among large numbers of variables to reduce them to a smaller set of variables, and to identify clusters of variables that are most closely linked together (factors).
You might also like to view...
A nurse assesses an infant using the Premature Infant Pain Profile and gives the baby a score of 19. What action by the nurse is most appropriate?
A. Administer morphine (Astramorph). B. Give an oral sucrose solution. C. Provide nonnutritive sucking. D. Swaddle and cuddle the infant.
Which potential research subject is considered a vulnerable population for a research project?
1. A 35-year-old with diagnosed schizophrenia. 2. A 47-year-old hospitalized with cancer. 3. A 16-month-old hospitalized with pneumonia. 4. A 16-month-old hospitalized with pneumonia.
A patient has been prescribed albendazole on an outpatient basis for an anthelmintic infection. After teaching the patient about the therapy, which statement by the patient indicates effective teaching?
A) "Easy bruising or bleeding is normal and needn't be reported." B) "I need to disinfect the bathtub or shower stall immediately after bathing." C) "I should avoid bathing daily if I have problems with my skin." D) "I need to use oral contraceptives while I'm taking this drug."
When providing client care the nurse demonstrates practices that are designed to provide legal protections from liability. Which actions is the nurse demonstrating?
1. Checking the client's name band prior to the administration of a preoperative medication 2. Asking for help when moving a comatose client because the client can not be safely handled by one nurse 3. Attending an in-service on the appropriate use of a new piece of equipment used in the facility 4. Delegating only those tasks that he or she can't personally perform 5. Reviewing the five rights of medication administration when the client states, "This doesn't look like my usual pill"