Knowledge Check: Introduction to Variables Home Modules Quizzes Additional Resources Foundations of Quantitative Research in Political Science Quick Recap: Introduction to Variables Introduction to Confounding and Intervening Variables <a href="https://apsa.wufoo.com/forms/z12bpwz80w901hf/">Fill out my Wufoo form!</a> Quick Recap: Introduction to Variables Introduction to Confounding and Intervening Variables
