DATA ANALYSIS FOR SOCIAL SCIENCES

DATA ANALYSIS FOR SOCIAL SCIENCES

Davide Angelucci, Bruno Jean Albert Cautres

Instructional goals

Quantitative empirical analysis has become increasingly an important part of political science research — and social sciences in general — and public policy debates. The results of statistical analysis or quantitative data, such as opinion polls, election results, and government spending, can be seen in many research articles and books on political science and various reports on policy issues published by governments, think-tanks and news media. Ability to properly understand and critically assess the results of quantitative statistical analysis has become an invaluable asset for any social scientist. This course introduces important foundations of these quantitative empirical studies.

Intended learning outcomes

Knowledge and understanding: The participants are expected to know some basic principles in social sciences methodologies and to have a minimal knowledge in descriptive statistics. The level of mathematical formalisation of the course is moderate. More important than the formulas, the learner is expected to understand the methodological issues and empirical tools applied to political science and public policy questions. Applying knowledge and understanding: Whether you think they should or they should not, numbers, data, and quantitative methods matter to today's public policy and political analysis. Policymakers, political analysts and administrators use numbers to support their arguments. They also use quantitative data analysis to predict and evaluate the success or failure of new policies, analyze trends in public opinion or to develop empirical measurement. This course will help students in engaging in evidence-based political and policy analysis and will provide them the solid grounds to either practice quantitative methods or read publications based on it. A particular emphasis will be given to examples based on public policy case studies in areas of direct interest to the Policies and Governance in Europe program (cultural policies for instance) Making judgements: There are two main necessary ways to gain autonomy, independence and critical thinking in quantitative methods: one is by reading texts presenting the applications of methods in substantive fields (this provides an intellectual incentive to study the techniques); the other is by practice and doing it yourself. An optimal combination of the two is by replicating with real data the results of a published papers. This gives confidence in quantitative skills and produce an “open-the-gate” effect: it reduces the “black box” aspect of the methods. The course will offer several opportunities to practice and/or to read/replicate published results. Communications Skills: How to “speak quantitative methods”? One of the most important objectives of a quantitative class for social scientists is to learn how to communicate the (sometimes) tricky vocabulary and results of advanced quantitative methods and techniques. An important aspect of the course will be to lean the participants the necessary vocabulary of quantitative methods and also the techniques of graphical displays that may help to communicate the results of quantitative methods. Learning skills: The course will be close to a seminar/workshop where students receive practical and methodological teaching with examples and some replications of papers. The objective is to “push” ahead the students in empirical and practice direction. The empowerment of the students in making them users of quantitative methods is important. A very important achievement will be that the students can use the learned techniques for their other academic activities of LUISS.

Course Contents

Beyond the basic techniques and principles of statistical reasoning, the objective is to train students in methods of multivariate quantitative analysis frequently used in political and policy analysis. The course will run from simple and bivariate analysis to multivariate statistical techniques. The regression analysis and its different forms (linear, nonlinear, binomial and multinomial logit analysis, loglinear analysis) will be covered by several sessions, going from the first basic recalls about linear model to more specialized topics. The course will also introduce shortly to geometrical data analysis (principal components and correspondence analysis) and to public policy evaluation techniques (for causal inference).

Reference Books

Alan Agresti, Barbara Finlay. Statistical methods for social sciences. Prentice Hall, 4th edition Paul Kellstedt, Guy Whitten. The fundamental of political science research. Cambridge, Cambridge University Press, 2nd edition, 2013

Teaching Methods

Teaching methods will be lectures/examples and group project works

Assessment Method

Midterm exam and project works

Thesis assignment criteria

Criteria for accepting requests are: 1) Exam grade 2) Quality of the proposed project Thesis requests should be presented in the form of a one-page project, with a short reference lists and a suggested index. The project should briefly detail the research question and the specific case studies considered. Potentially acceptable requests will be discussed together by the instructors and the student.

Week 1 Contenuto sessioni on line e on campus

Introduction to statistical methodology Descriptive and inferential statistics Measurement of variables Descriptive statistics Reference readings: Alan Agresti, Barbara Finlay. Statistical methods for social sciences (Chapters 1, 2, 3)

Week 2 Contenuto sessioni on line e on campus

Introduction to probability From samples to population: introduction to inferential statistics Estimation and confidence intervals Tests of statistical significance On-campus (prevalently) and online practical exercises and discussion Reference readings: Alan Agresti, Barbara Finlay. Statistical methods for social sciences (Chapters 4, 5, 6)

Week 3 Contenuto sessioni on line e on campus

Comparing groups: z-test and t-test Measures of associations On-campus (prevalently) and online practical exercises and discussion Reference readings: Alan Agresti, Barbara Finlay. Statistical methods for social sciences (Chapters 7 & 8)

Week 4 Contenuto sessioni on line e on campus

Introduction to linear models Ordinary Least Squares regression model Assumptions of the regression model On-campus (prevalently) and online practical exercises and discussion Reference readings: Alan Agresti, Barbara Finlay. Statistical methods for social sciences (Chapter 9)

Week 5 Contenuto sessioni on line e on campus

From bivariate to multivariate regression analysis On-campus (prevalently) and online practical exercises and discussion Reference readings: Alan Agresti, Barbara Finlay. Statistical methods for social sciences (Chapter 10 & 11)

Week 6 Contenuto sessioni on line e on campus

Modelling quantitative and categorical predictors Interaction effects On-campus (prevalently) and online practical exercises and discussion Reference readings: Alan Agresti, Barbara Finlay. Statistical methods for social sciences (Chapters 12 & 13

Week 7 Contenuto sessioni on line e on campus

Introduction to non-linear models Midterm exam Reference readings: Alan Agresti, Barbara Finlay. Statistical methods for social sciences (Chapter 14)

Week 8 Contenuto sessioni on line e on campus

Exponential regression analysis On-campus (prevalently) and online practical exercises and discussion Reference readings: Alan Agresti, Barbara Finlay. Statistical methods for social sciences (Chapter 14)

Week 9 Contenuto sessioni on line e on campus

Introduction to regression analysis with categorical outcomes Binary logistic regression Logistic regression with ordinal outcomes On-campus (prevalently) and online practical exercises and discussion Reference readings: Alan Agresti, Barbara Finlay. Statistical methods for social sciences (Chapter 15)

Week 10 Contenuto sessioni on line e on campus

Multinomial logistic regression On-campus (prevalently) and online practical exercises and discussion Reference readings: Alan Agresti, Barbara Finlay. Statistical methods for social sciences (Chapter 15)

Week 11 Contenuto sessioni on line e on campus

Introduction to factor analysis and correspondence analysis On-campus (prevalently) and online practical exercises and discussion Reference readings: Alan Agresti, Barbara Finlay. Statistical methods for social sciences (Chapter 16)

Week 12 Contenuto sessioni on line e on campus

Introduction to hierarchical models On-campus (prevalently) and online practical exercises and discussion Reference readings: Alan Agresti, Barbara Finlay. Statistical methods for social sciences (Chapter 16)