FSU - POS 3713 - Exam four example test - Study Guide

View Full Material
This preview shows pages 1 - 3 of a 7 page document.
Sign up
to view the rest of the content

1
Understanding Political Science Research
(POS 3713-01, Fall 2016, BEL 180)
Prof. Jens Großer

grade. There are 25 questions with four possible answers each. In all questions, only one of

the four answers is correct. You will receive 1 point for each correct answer, and 0 points for each incorrect answer. Hence, the maximum possible points in this test are 25 points.

Please read the questions and possible answers carefully before you make your choices! Also, don’t forget to write down and “bubble” your name on the answer sheet!

On Chapter 8:

(d) Neither (a) nor (b) are correct.

random component Yi is the systematic component

**Unit exam #4**12/07/2016 This is the fourth out of four multiple choice tests (unit exams) that count for your finalgrade. There are 25 questions with four possible answers each. In all questions, only one of

the four answers is correct. You will receive 1 point for each correct answer, and 0 points for each incorrect answer. Hence, the maximum possible points in this test are 25 points.

Please read the questions and possible answers carefully before you make your choices! Also, don’t forget to write down and “bubble” your name on the answer sheet!

On Chapter 8:

**The following 6 questions all refer to the population regression model and/or the**

sample regression model from a bivariate regression model where the populationsample regression model from a bivariate regression model where the population

**regression model is:***i**i**i**u**X**Y*+ + = β α**and the sample regression model is:***i**i**i**u**X**Y*ˆ ˆ ˆ + + = β α**1. Which of the following statements are accurate about the population regression**

model?

(a) ! " is the stochastic component of # " . (b)model?

*i**X*β α ˆ ˆ + is the systematic component of # " . (c) Both (a) and (b) are correct. (d) Neither (a) nor (b) are correct.**2. Which of the following statements are accurate?**

(a)*i**u*ˆ is an estimate of*i**u*. (b) $ " is assumed to be measured without error. (c) Both (a) and (b) are correct. (d) Neither (a) nor (b) are correct.**3. Which of the following statements are accurate?**

(a) . 0 ) ( =*i**u**E*(b) . 0 ) ( 2 =*i**u**E*(c) Both (a) and (b) are correct.(d) Neither (a) nor (b) are correct.

random component Yi is the systematic component

2

(d) Neither (a) nor (b) are correct.

on whether or not we have a directional hypothesis.

(b) The null hypothesis for

(d) Neither (a) nor (b) are correct.

question: “Using a scale from 0 to 10 where 0 means a complete failure and 10 means a complete success, how would you rate the war in Iraq?” The

dependent variable “Blair Feelings” comes from responses to the question: “Now, some questions about the party leaders. Using a scale that runs from 0 to

10, where 0 means a very incompetent leader and 10 means a very competent

leader, how would you describe Tony Blair?”

alpha beta

**4. Which of the statements are accurate?**

(a) By specifying a bivariate regression model we are assuming that the impact of a one unit increase in $ " will always be %. (b) By specifying a bivariate regression model we are assuming that there are no other variables that cause # " . (c) Both (a) and (b) are correct.(d) Neither (a) nor (b) are correct.

**5. Which of the following statements are accurate?**

(a) In order to estimate a bivariate regression model, you must have at least two cases. (b) If $ " = 4 for all observed $ " you can estimate a bivariate regression model. (c) Both (a) and (b) are correct. (d) Neither (a) nor (b) are correct.**6. Which of the following statements are accurate?**(a) In hypothesis testing from a bivariate regression model, our conclusions do not dependon whether or not we have a directional hypothesis.

(b) The null hypothesis for

*any*hypothesis test about % will be that % = 0. (c) Both (a) and (b) are correct.(d) Neither (a) nor (b) are correct.

**The following 4 questions all refer to the results displayed in the figure below. In the**

questions, numbers from the Stata results are rounded to two decimals.questions, numbers from the Stata results are rounded to two decimals.

**Figure**: Stata results for the two-variable regression model of BlairFeelings.*Notes*: The independent variable, “Iraq War Success Scale” comes from thequestion: “Using a scale from 0 to 10 where 0 means a complete failure and 10 means a complete success, how would you rate the war in Iraq?” The

dependent variable “Blair Feelings” comes from responses to the question: “Now, some questions about the party leaders. Using a scale that runs from 0 to

10, where 0 means a very incompetent leader and 10 means a very competent

leader, how would you describe Tony Blair?”

alpha beta

3

(c) 4.70

(d) 0.31

(b) For every one-unit increase in “Iraq War Success Scale”, we can expect to see a 0.31 increase in “Blair Feelings.”

(c) If the variable “Blair Feelings” is zero, it is highly likely that the variable “Iraq

War Success Scale” will also be equal to zero. (d) None of the above.

independent variable and the dependent variable in this model due to random chance. (b) This model explains about 90% of the variation in “Blair Feelings.”

(c) Both (a) and (b) are correct.

(d) Neither (a) nor (b) are correct.

to predict the value of “Blair Feelings.” Our predictions will on average be off by 2.337.

(b) Even if an individual feels very negatively about how the Iraq war is going, they are quite unlikely to have the worst possible judgment about Tony Blair's competence.

(c) Both (a) and (b) are correct.

(d) Neither (a) nor (b) are correct.

On Chapter 9:

(b) To attempt to cross the second causal hurdle – that is, to see if

whole, thus making our findings statistically significant.

(d) To test whether

beta is the expected

value or estimate 0.31 = alpha.

**7. In this example, if an individual has judged that Iraq war is a complete failure,**

meaning that they have a value of 0 for the independent variable, what would bemeaning that they have a value of 0 for the independent variable, what would be

**their expected value for “Blair Feelings?”**

(a) 0 (b) 5.00(c) 4.70

(d) 0.31

**8. Which of the following statements are accurate?**

(a) For every one-unit increase in “Blair Feelings”, we can expect to see a 0.31 increase in “Iraq War Success Scale.”(b) For every one-unit increase in “Iraq War Success Scale”, we can expect to see a 0.31 increase in “Blair Feelings.”

(c) If the variable “Blair Feelings” is zero, it is highly likely that the variable “Iraq

War Success Scale” will also be equal to zero. (d) None of the above.

**9. Which of the following statements are accurate?**(a) It is highly unlikely that we would see the relationship that we are seeing between theindependent variable and the dependent variable in this model due to random chance. (b) This model explains about 90% of the variation in “Blair Feelings.”

(c) Both (a) and (b) are correct.

(d) Neither (a) nor (b) are correct.

**10. Which of the following statements are accurate?**(a) With these results, if we know the value of “Iraq War Success Scale” then we will be ableto predict the value of “Blair Feelings.” Our predictions will on average be off by 2.337.

(b) Even if an individual feels very negatively about how the Iraq war is going, they are quite unlikely to have the worst possible judgment about Tony Blair's competence.

(c) Both (a) and (b) are correct.

(d) Neither (a) nor (b) are correct.

On Chapter 9:

**11. What is the principal goal of multiple regression in social-scientific research?**(a) To validate the results of an experiment by applying it to a separate sample of data.(b) To attempt to cross the second causal hurdle – that is, to see if

*Y*might cause*X*. (c) To maximize the likelihood that our sample is representative of the population as awhole, thus making our findings statistically significant.

(d) To test whether

*X*causes*Y*in observational research while controlling for other causes of*Y*.beta is the expected

value or estimate 0.31 = alpha.

This is the end of the preview. Please
Sign up
to view the rest of the content

Join more than 18,000+ college students at Florida State University who use StudySoup to get ahead

##### School: Florida State University

##### Department: Political Science

##### Course: Political Science Research Methods

##### Professor: Matthew Pietryka

##### Term: Spring 2016

##### Tags:

##### Name: Exam four example test

##### Description: includes example questions and answers with explanations.

##### Uploaded: 12/13/2016

**7**Pages

**192**Views

**153**Unlocks

- Better Grades Guarantee
- 24/7 Homework help
- Notes, Study Guides, Flashcards + More!

Recommended Documents

Join StudySoup for FREE

Get Full Access to
FSU - POS 3713 - Study Guide

Already have an account?
Login here

Reset your password

I don't want to reset my password

Need help? Contact support

We're here to help

Having trouble accessing your account? Let us help you, contact support at +1(510) 944-1054 or support@studysoup.com

Password Reset Request Sent
An email has been sent to the email address associated to your account.
Follow the link in the email to reset your password.
If you're having trouble finding our email please check your spam folder

Incorrect Password
The password used to log in with this account is incorrect

Forgot password? Reset it here