Week 1: Introduction

POP88162 Introduction to Quantitative Research Methods

Tom Paskhalis

Department of Political Science, Trinity College Dublin

Overview

  • Module objectives
  • Prerequisites and software
  • Module components
  • Materials and books
  • Assessment and plagiarism
  • Research ethics
  • Weekly schedule

About me

Teaching Assistants

Elena Karagianni

  • PhD student, Trinity College Dublin
  • Research interests:
    • Environmental politics, democratic accountability, voting behaviour
    • Computational text analysis, quasi-experiments
  • Contact

Juliane Wesselmann

  • PhD student, Trinity College Dublin
  • Research interests:
    • Political gender stereotypes, voting and candidate preferences, parental socialisation
    • Quasi-experiments, mixed-methods
  • Contact

Module Objectives

  • Introduce the fundamentals of quantitative research
  • Get familiar with conducting data analysis in R
  • Develop understanding of core statistical principles
  • Learn essential statistical models
  • Practice these concepts using political science examples

Prerequisites and Software

  • Introductory module - no formal prerequisites
  • Laptop with Windows/Mac/Linux OS
  • Software:
    • R (version 4+) - statistical programming language
    • RStudio - feature-rich R editor

Module Components

Readings

  • Core books:
    • Alan Agresti. 2018. Statistical Methods for the Social Sciences. 5th ed
    • Ethan Bueno de Mesquita and Anthony Fowler. 2021. Thinking Clearly with Data: A Guide to Quantitative Reasoning and Analysis
  • Very good additional texts:
    • Andrew Gelman, Jennifer Hill and Aki Vehtari. 2020. Regression and Other Stories
    • Kosuke Imai. 2017. Quantitative Social Science: An Introduction
  • More choices and week-by-week reading list in the syllabus.

Module Assessment

  • Participation (10%)
    • Tutorial attendance, RQ presentation
  • 3 R assignments (5% each)
  • Research design (15%)
    • Approximately 1-2 pages and no more than 500 words
  • Research paper (60%)
    • Must set up, perform, and interpret at least one test of statistical significance
    • Approximately 10 pages and no more than 4,000 words
    • Due by 23:59 Tuesday, 21 April 2026
  • Submission via Blackboard

Plagiarism Policy

Generative AI Policy

  • Permitted uses: Explaining unclear concepts and bits of R code, brainstorming, and proofreading.
  • No private, personal and copyrighted data (including any part of this module’s materials) should be submitted to any generative AI service.
  • Prohibited uses: Using generative AI to create solutions to assignments is strictly prohibited.
  • Prohibited uses constitute academic misconduct and will be dealt with under the College’s Academic Integrity Policy.

Research Ethics

  • If you are carrying out research on human subjects (interviews, surveys, experiments, etc.),
  • You must first receive an ethical approval from TCD.
  • More information is available here:
    https://www.tcd.ie/ssp/research/ethics/

Module Outline

Week Date Lecture Topic Workshop Topic Tutorial Topic Assignment Due
1 20 January Introduction R Overview Getting Started with R
2 27 January Descriptive Statistics Data Structures Data & Variables
3 3 February Probability Theory Probability Distributions Distributions & Sampling 1 R Assignment
4 10 February Hypothesis Testing Data Frames Data Frames & Plotting
5 17 February Analysis of Proportions & Means Factor Variables Cross Tabulation
6 24 February Correlation Visualisations Correlation 2 R Assignment
7 3 March - - - -
8 10 March Linear Regression I RQ Presentations I Linear Regression I
9 17 March Linear Regression II RQ Presentations II Linear Regression II
10 24 March Linear Regression III RQ Presentations III Linear Regression III 3 R Assignment
11 31 March Causation RQ Presentations IV Causation
12 7 April Logistic Regression RQ Presentations V Logistic Regression Research Design

Next

  • What is quantitative research?