A study examines the relationship between strength of belief in previous lives (Yes, Not Sure, and No) and percentage of butterfat in milk most commonly purchased (Non-Fat, 1%, 2%, Whole)
The data could be analyzed by which of the following statistical tests?
a. Kendall's tau
b. Pearson's product-moment correlation
c. Principal components analysis
d. Bland and Altman plot
ANS: A
If one or both of two study variables do not meet the assumptions for a Pearson's correlation, or if the variables are scaled on an ordinal scale of measurement (rather than interval or ratio), both the Spearman rank order correlation and Kendall's tau are more appropriate statistics. The Spearman rank-order correlation and Kendall's tau calculations involve converting the data to ranks, thereby discarding any variance or normality issues associated with the original values.
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A student nurse asks what "essential hypertension" is. What response by the registered nurse is best?
a. "It means it is caused by another disease." b. "It means it is 'essential' that it be treated." c. "It is hypertension with no specific cause." d. "It refers to severe and life-threatening hypertension."
When performing a genital examination on a 25-year-old man, the nurse notices deeply pigmented, wrinkled scrotal skin with large sebaceous follicles. On the basis of this information, the nurse would:
a. Squeeze the glans to check for the presence of discharge. b. Consider this finding as normal, and proceed with the examination. c. Assess the testicles for the presence of masses or painless lumps. d. Obtain a more detailed history, focusing on any scrotal abnormalities the patient has noticed.
Cultural competence is the ongoing process in which a health care professional continuously strives to achieve the ability to work effectively within the cultural context. To do this effectively, what must the nurse do?
a. Understand the cultural norms of the pa-tient's community. b. See herself or himself as being culturally competent. c. Face the reality that cultural competence can take up to a year to achieve. d. View herself or himself as becoming cul-turally competent.
Which of the following factors influence the absorption of orally administered medications?
a. gastric emptying time and pH c. condition of the kidneys b. time of day administered d. iron content of the blood