The following graph resulted when a researcher plotted the paired scores from two sets of data: Which of the following conclusions is justified from an examination of the graph?
a. The coefficient of correlation is close to .50.
b. The correlation between X and Y is negative and low.
c. The correlation between X and Y is positive and high.
d. A Spearman rho coefficient of correlation is appropriate for these data.
e. A Pearson's coefficient of correlation is not appropriate for these data.
Question 2
If a relationship between two variables is spurious, we conclude that it is
a. nearly always a cause and effect relationship.
b. partially regressed.
c. accounted for by another extraneous variable
d. not a statistically significant relationship.
e.
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