Course
Test
Started
Submitted
Due Date
Status
202023 Spring 202 EDUC 812-B02 LUO3
Quiz 6 (Warner: chs. 9 & 11)
3/1/23 7:11 PM
3/1/23 7:57 PM
3/1/23 11:59 PM
Completed
Attempt Score 44 out of 50 points
Time Elapsed 46 minutes out of 2 hours
Results
Displayed
Submitted Answers, Feedback, Incorrectly
Answered Questions
Question 1
2 out of 2 points
In a survey that included assessment of husband and wife heights, Hodges, Krech, &
Crutchfield (1975) reported the following results. Treat the wife's height as the
predictor (X) variable and the husband's height as the outcome (Y) variable.
Based on these values, what is the raw score predictive equation?
Selected
Answer:
Husband Height’ = 51.78 + .
29*Wife height
Question 2
2 out of 2 points
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 (5, 94) = 5.18, < .05. The predictor variables had the corresponding p-Fp
values:
Sleep ( = .01)p
Diet ( = .03)p
Exercise ( = .08)p
Age ( = .14)p
Gender ( = .45)p
Based on this model, what are the best predictors of GPA?
Selected
Answer: Sleep and Diet
Question 3
2 out of 2 points
A Bivariate Regression was conducted to evaluate the predictive relationship
between total years of schooling and annual income. The results of the regression
model were (1,88) = 4.1, < .05. What can be concluded about these results?F p
Selected
Answer:
total years of schooling is a significant predictor of
annual income.
Question 4
2 out of 2 points
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 summarizes how tightly clustered the
points would be around that imaginary line. The process of placing a line onto the
scatterplots is called ________.
Selected
Answer:
Regressi
