PSY 124 Chapter Notes - Chapter 2: Affective Forecasting, Name–Letter Effect, Social Comparison Theory
27 Dec 2017
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Document Summary
Hypothesis an explicit, testable prediction about the conditions under which an event will occur. Theory an organized set of principles used to explain observed phenomena. Operational definition the specific procedures for manipulating or measuring a conceptual variable. Construct validity the extent to which the measures used in a study measure the variables they were designed to measure and the manipulations in an experiment manipulate the variables they were designed to manipulate. Interrater reliability the degree to which different observers agree on their observations. Random sampling a method of selecting participants for a study so that everyone in a population has an equal chance of being in the study. Random assignment a method of assigning participants to the various conditions of an experiment so that each participant in the experiment has an equal chance of being in any of the conditions. Correlational research research designed to measure the association between variables that are not manipulated by the researcher.
