Rho is used where one or both variables are at least of interval
Question 1 10 out of 10 points
Rho is used where one or both variables are at least of interval scaling.
Having Trouble Meeting Your Deadline?
Get your assignment on Rho is used where one or both variables are at least of interval completed on time. avoid delay and – ORDER NOW
? Question 2
10 out of 10 points
The easiest way to determine if a relationship is linear is to calculate the regression line.
? Question 3 10 out of 10 points
If scores are z scores and if r equals 1 then zX will always equal zY.
? Question 4 10 out of 10 points
Pearson r requires that the data be of interval or ratio scaling.
? Question 5 10 out of 10 points
For a linear relationship to exist, all the points must fall on a straight line.
? Question 6 0 out of 10 points
The formula for rho is actually just the formula for Pearson’s r simplified to apply to lower order scaling.
? Question 7 10 out of 10 points
If the value of r on ratio scaled raw data were 0.87 and the pairs of numbers were converted to ordinal data, and r calculated for the ordinal data, r would equal 0.87.
? Question 8 10 out of 10 points
Restricting the range of either X or Y will generally lower the correlation between the variables.
? Question 9 10 out of 10 points
In an inverse relationship as one variable gets larger the other variable gets smaller.
? Question 10 10 out of 10 points
In a straight line the slope approaches zero as the line comes near the point X, Y.
