Spearman's rank correlation coefficient

procedure was defined as the stable placement of the microcatheter tip into the proper hepatic artery. All the procedures were conducted following the research protocol approved by the Institutional Animal Care and Use Committee. Spearman's rank correlation coefficient was calculated to determine the relationship between size of hepatic artery and weight of rats. Mann-Whitney and Wilcoxon tests were used to evaluate the differences between groups. (1029…

variables would be related, as the likelihood of maternal death during childbirth is increasingly unlikely when the number of doctors present is higher. With this knowledge, it is predicted that the two variables listed above will have a strong correlation. After looking over data from both variables, Number of Physicians was deemed the independent variable, while Maternal Mortality became…

Research data shows that there was a 6% risk of death for patients when a shift with a nurse staffing shortage of 8 hours occurred. In 2004, the Institute of Medicine released a report, Keeping Patients Safe: Transforming the Nursing Work Environment, which identifies solutions to problems in work environments that threaten patient safety through their effect on nursing care including hospitals, nursing home, and other health care organization. According to the American Nurses Credentialing…

that were not normally distributed median and interquartile range (expressed as 25th -75th percentiles) were calculated and Mann-Whitney test was used for comparison between independent groups while Wilcoxon signed rank test was used to compare related samples. Spearman's correlation was performed. For normally distributed data, values were expressed as mean and standard deviation and independent sample t test was used for comparison between independent groups. For qualitative data, Pearson's…

the efficiency and cost results of hospitals in Washington state (Coyne et al. 2009; 164)?” This research question is remarkably clear, leading to a better discussion of the question. It is free of complication jargon and directly asks about the correlation between the independent and dependent variables in an interesting fashion (Coyne et al. 2009). Messina The Messina et al. article, in contrast, has more than one research question: “First, what is the nature of the relationship between…