# EDUC 812 Quiz 7

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1. In bivariate regression, the amount of change in Y for one-unit change in X is:

2. Table 1 provides a summary of the regression analysis for the variable predicting happiness.

What can the researcher say about the variable sense of humor?

3. In a bivariate regression, the variable from which a prediction is made is called the predictor variable, whereas the variable to be predicted or (the outcome) is called the:

4. In bivariate regression, the difference between the obtained value and the predicted value of Y, is:

5. What assumption is __not__ required for a bivariate regression to be a valid description of the relationship between X and Y?

6. A Multiple Linear Regression analysis generates an equation to describe the statistical relationship between one or more predictor variables and the response variable. The *t*-statistic and its corresponding *p*-value for each term tests the null hypothesis that the coefficient is equal to zero.

7. A researcher wants to evaluate the null hypothesis that the amount of time college studentsâ€™ spend online does not significantly predict their GPA. What is the best analysis to test this null hypothesis?

8. *r*2 = .547 be interpreted as 54.7% of the variance in the outcome or criterion is explained by the predictor.

9. A Multiple Linear Regression was conducted to evaluate if (sleep, diet, exercise, age, gender) can predict the criterion variable (GPA). The results of the regression model were *F*(5, 94) = 5.18, p < .05. The predictor variables had the corresponding p-values:

10. In bivariate regression, the value of Y when X equals 0 is:

11. In the equation, Yâ€™ = *b*0 + *b*1X, *b*0 represents the:

12. Given Yâ€™ = *b*0 + *b*1X.

If *b*0 = 0 and *b*1 = 5 and X = 1, Y will equal:

13. In a correlation analysis, we examine scatterplots and "imagine" a line running through the datapoints that characterizes the general linear pattern of the data. We add a number, the Pearson correlation, which summarized how tightly clustered the points would be around that imaginary line. The process of placing a line onto the scatterplots is called ________.

14. In the equation Yâ€™ = *b*0 + *b*1 X1 , Yâ€™ is level of bordem and X is listening to statistics tutorials. If *b*1 = 0, what can be said about the relationship between bordem and listening to statistics tutorials?

15. In a survey that included assessment of husband and wife heights, Hodges, Krech & Crutchfield (1975) reported the following results. Letâ€™s treat wife height as the predictor (X) variable, and husband height as the outcome (Y) variable.

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**EDUC 812 Quiz 7**

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