Which of the following is a correlation coefficient that uses ranks?
a. Kendall's tau (?)
b. Pearson's r
c. Point-biserial correlation (rpb)
d. Spearman's rho (rS)
D
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Following several days in an acidotic state, a hospital patient has returned to desired pH. Which of the following processes could have contributed to the resolution of the patient's health problem?
A) Exchange of Na+ and H+ ions B) Selective renal secretion and reabsorption of CO2 C) The phosphate and ammonia buffer systems in the renal tubules D) Excretion of HCO3- by the kidneys
An experimental design has been used to evaluate the effectiveness of a preventive health fair. An experimental design is very useful to answer questions about:
A) Cost efficiency B) Outcome C) Progress D) Relevancy
The school nurse is working with a child who seems angry and hits or hurts other children. Children who hurt other children are most often:
a. victims of abuse themselves b. victims of manic depressive illness c. individuals who are neurologically impaired d. persons with brain damage
A client begins frankly discussing his harrowing history of abuse as a child. The nurse listens for some time and then changes the subject to address stress management techniques. What is the most likely motivation for the nurse's action?
A) To make sure she understands other problem areas in the client's life B) To model social skills and communication skills for the client C) To help the client understand appropriate boundaries D) To reduce her own level of anxiety