Notes from Week 3 of class
Notes from Week 3 of class 400
Popular in Research in Political Science
Popular in Public Relations
This 3 page Class Notes was uploaded by Dora Notetaker on Thursday September 10, 2015. The Class Notes belongs to 400 at University of Alabama at Birmingham taught by John E McNulty in Summer 2015. Since its upload, it has received 41 views. For similar materials see Research in Political Science in Public Relations at University of Alabama at Birmingham.
Reviews for Notes from Week 3 of class
Report this Material
What is Karma?
Karma is the currency of StudySoup.
You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!
Date Created: 09/10/15
PSC 4002D Research in Political Science Dr McNulty Set of Notes 3 Week of Sept 7 Tue Sept 8 Hypotheses can prove a theory 0 For Example Voting and distance from polling place It can be observed and measured Each quarter of a mile from polls 1 less likely to vote You can chart your findings And random things can affect your results like weather people will be less willing to walk to the polls if it39s raining 0 Dr McNulty worked in Los Angeles with his research where it almost never rains so easier to measure 0000 Concept Measure Accuracy Precision 0 Concept An idea concrete or abstract which is important to the researcher 0 Measure A means of measuring the concept 0 Usually can be represented in a variable 0 Accuracy How well accurately a measure can be calculated 0 Precision The degree to which a measure reflects the concept Measurement issues using Dr McNulty s research o How do you measure distance from the polling place 0 Pythagorean Theorem I Between the home polling place and the right angle between them Need to consider the curvature of the Earth 0 Manhattan blocks blocks like the block squares used in the layout of Manhattan 0 Actual driving distance Difficulty finding good measurement How do you measure other things 0 What about questions like inequality How do you measure inequality 0 How do you measure wealth o lfwealth is measured by IRS income they don t consider hidden assets like holdings Concepts are things that are important to the researcher 0 You have to figure out what you want to know about the topic 0 For example terrorism 0 What do you consider terrorism 0 Does someone have to die or can a terrorist act be just damage of property o It is important to match concept to measurement Thurs Sept 102015 Relationship between concepts and measurement 0 When we reduce concepts to something we can measure they become variables Variables 0 These are symbols that represent a value that can vary 0 They are usually letters 0 English language letters 0 Greek letters 0 Symbols figures shapes 0 Conventions o Yy Dependent variable 0 X x Independent variable 0 M m or Beta beta Slope coefficient I Coefficient a value that represents the relationship between variables 0 B b or Alpha alpha Yintercept I The value of y when xO Example Voting and distance from polls 0 Turnout is on the yaxis 0 Distance is on the xaxis 0 Your theory Distance is related to turnout 0 Your hypothesis The farther away from the polling place less likely to vote Correlation c As the value of one variable changes the value of another changes too o Negative correlation 0 Positive correlation y mxb o This equation is used to find graph lines o m slope yx or riserun o b yintercept where the line intercepts the yaxis o The difference between this equation and what we are studying now in social science is that there is a limit to variation 0 So our equation looks like this y mxb a o a is epsilon and it stands for error And we use all Greek letters to represent anything other than x and y 0 So the equation becomes y 1 3x s o y alpha beta x epsilon
Are you sure you want to buy this material for
You're already Subscribed!
Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'