Exam 13: Partial Correlation and

The techniques of

When examining a bivariate relationship using Pearson's r, the partial correlation computed while using one control variable is called

In the multiple regression equation, the partial slopes are represented by the symbol

To the extent that the variables do not meet the assumptions of regression analysis, coefficients and slopes become

Which of the following would be consistent with a direct relationship between X and Y?

After controlling for Z, a researcher finds evidence of a spurious relationship between X and Y. What step should be taken next?

In the

Partial correlation will detect all of the following relationships among variables except

The 'first-order' partial correlation coefficient measures

After controlling for Z, a researcher finds evidence of a direct relationship between X and Y. What step should be taken next?

Which of the following is a correctly stated standardized regression equation?

After controlling for Z, the partial correlation coefficient between X and Y is the same value as the bivariate Pearson's r. This pattern would be taken as evidence of

After controlling for Z, the partial correlation coefficient is .78. The bivariate Pearson's r between X and Y was only .51. Which interpretation is consistent with these results?

A standardized regression equation is stated as: Zy = (.46)Z1 + (.47)Z1. Which conclusion is most consistent with this formula?

In the least-squares

A researcher examines the relationship between poverty and crime rates for 100 metropolitan areas and finds a zero-order correlation of 0.37. She controls for the percent of families that are headed by single parents and finds a first order partial correlation of 0.06. Which of the following correctly describes this outcome? This is a ______ relationship

To investigate the combined effects of several independent variables on a single dependent variable, we use

Which of the following would be consistent with a spurious relationship between X and Y?

A researcher is examining the effects of income (X1) and number of friends (X2) on personal happiness (Y) and finds an R² of 0.45. Which of the following is a correct interpretation of this result?

While unstandardized partial slopes permit predictions of Y in the original units of the variable, standardized partial slopes permit an assessment of