PSY 2114 Lecture Notes - Lecture 2: Fetal Alcohol Spectrum Disorder, Serotonin Transporter, Cell Division

• School: University of Ottawa
• Department: Psychology
• Course: PSY 2114
• Professor: Wendy Lee

Document Summary

Scienti c method: systematic way of nding the right answers to questions or problems that includes standards of sampling, procedure, and measures. Identify a research question: form a hypothesis, choose a research design, collect data, draw conclusions. Independent variable (iv): related to or in uences the dependent variable: the variable that is manipulated, causes, predicts, or explains changes in the dependent variable, aka predictor or explanatory variable. Dependent variable (dv): depends on, is related to, or is in uenced by the independent variable: is observed after the independent variable is manipulated. Iv: violent tv shows, dv: levels of aggression. Allows inferences about causes and effects to be drawn. Typically involves assigning participants randomly to groups: random assignment helps to reduce bias. Allows us to determine causation because we manipulate one variable while keeping others constant: allows us to determine its effects.