POL SCI 3 Lecture Notes - Lecture 12: Pilot Experiment, Causal Inference, Internal Validity
Document Summary
Based on design alone, we have our idea of what design has the highest level of internal validity. From what we learned in this class, we do it through counter balance. But things can fall apart in ways that have to do with other aspects of the experiment itself: they tamper our ability to reach a valid causal inference. Today we will be talking about 14 ways things can fall apart in terms of internal validity: then we will talk about solutions, if solutions exist. 1. induced state failure a. induced state treatments are treatments that we use to induce a state (independent variable: often times, a state is an emotion (like fear) You expect to induce a state but you don"t induce sx c. If you don"t realize you failed, you could say anger doesn"t affect the dependent variable which is wrong d. e. If you failed, then there"s no difference in the dependent variable.
