A researcher is interested in assessing the strength and direction of the relationship between two variables that are not normally distributed. Which correlation coefficient should be used?  A. Pearson's correlation coefficient  B. Spearman’s rank correlation coefficient  C. Kendall's tau-b  D. Point-biserial correlation coefficient

A correlation coefficient consists of two things: ____________ and __________Question 7Answera.Direction and strengthb.Sign, absolute valuec.Absolute value, strengthd.Sign and direction

The coefficient of correlation r between two bivariate data is –0.80.  Which best describes the correlation?*There is no correlation because the computed r is negative.The correlation is very high but negative.The correlation is very low but negative.The strength of the correlation is negligible.None of the above

How is the correlation between two dichotomous variables measured?Pearson correlation coefficient.Spearman rank correlation coefficient.Point-biserial correlation coefficient.Kendall's tau

Which of the following are measured by correlation coefficienta.All of the aboveb.Direction of relationship between two variables (positive or negative association)c.Linear association between two random variablesd.A unit free value for the strength of linear relationship between two random variables

A researcher wants to examine the relationship between the number of hours students spend studying and their exam scores. Which correlation coefficient is appropriate for this scenario?  A. Pearson's correlation coefficient  B. Spearman’s rank correlation coefficient  C. Point-biserial correlation coefficient  D. Phi coefficient