PSY 301 Chapter Notes - Chapter 3: Dependent And Independent Variables, External Validity, Eating Disorder
Document Summary
Chapter 3: three validities: interrogation tools for consumer research. Variable: something that varies and so it must have two or more levels called values. Constant: something that could potentially vary, but that has one level in the study in question. Measures variable: one whose levels are simply observed and recorded. Manipulated variable: variable a researcher control, usually by assigning study participants to different levels of that variable. Conceptual definitions: careful definitions at theoretical level for conceptual variable. Operational definitions (operational variables): created for empirical research. Operationalize: to turn a concept of interest into a measured or manipulated variable. Claim: an argument someone is trying to make. There are three types of claims one can make. Describe a particular rate or degree of a single variable. Claim how frequent of common something is, mention the percentage, number, or level. Argues that one level of a variable is likely to be associated with a particular level of another variable.
