Portfolio 2

Task 4:

Write two new hypotheses using ratio, ordinal or dummy variables. For each of the hypotheses: Create a scatterplot to show the

relationship between the two variables. Calculate Pearson’s r for the two variables. What does this tell you about the relationship? Is

your hypothesis supported?

Task 5: Think about the hypothesis you created in the last task. What are some additional ratio or dummy variables (in the BSAS

dataset) that you might control for? Why do you think it is important to control for these variables?

Using SPSS, run a multivariate regression in order to test your hypothesis. Are the results similar to what you found in Task 4? Do you

find support for your hypothesis? Which variables have a statistically significant impact on your dependent variable, and how can you

tell? How much variation have you explained in your dependent variable?

Task 6: Write a hypothesis using a dummy/dichotomous variable as a dependent variable. What variables do you need to control for in

examining this hypothesis? Why?

Test your hypothesis using logistic regression. Do you find support for your hypothesis? Which variables have a statistically

significant impact on your dependent variable, and how can you tell?