A researcher has obtained a sample of individuals who are HIV positive. Which of the following sampling methods would the reviewer expect to find elaborated in the research report?
a. Accidental
b. Cluster
c. Network
d. Simple random
ANS: C
Network sampling is useful for locating samples difficult or impossible to obtain in other ways. Network sampling takes advantage of social networks and the fact that friends tend to have characteristics in common.
Accidental or convenience sampling would not be likely to yield an adequate sample of HIV-positive individuals.
Cluster sampling would not be the best method for finding the desired sample in this case.
Simple random sampling would not work well because the researcher is looking for a specific subgroup of the general population.
You might also like to view...
The perinatal nurse is providing care to a 32-year-old G1 TPAL 0000 at 34 weeks' gestation. Her blood pressure is 170/100 mm Hg, reflexes are +3, urine is 2+ for protein, and the patient is complaining of a headache
An intravenous solution of magnesium sulfate is begun with an hourly dose of 2 g. Which laboratory value would be assessed most carefully by the nurse? A. Aspartate aminotransferase (AST) B. Gamma-glutamyl transpeptidase C. Hematocrit D. Neutrophil count
A nurse is teaching a patient who is about to begin drug therapy with orlistat [Xenical]. The patient, whose BMI is 28, has hypertension and type 2 diabetes mellitus. Which statement by the patient indicates understanding of the teaching?
a. "Dark urine and light-colored stools are expected side effects with this drug." b. "I should stop taking this drug once my blood pressure and serum glucose have stabilized." c. "I will need to take a multivitamin con-taining fat-soluble vitamins every day." d. "If I have fatty or oily stools or fecal in-continence I should stop taking this drug."
An example of a quasi-governmental health organization is:
a. the National Science Foundation. b. a county health department. c. the American Cancer Society. d. the National Institutes of Health (NIH).
Which of the follow elements are present in the chain of infections? (Select all that apply.)
a. Source of growth b. Mode of transmission c. Infectious agent d. Susceptible host e. Portal of exit f. Catalyst g. Port of entrance