PSYC 2740 Chapter Notes - Chapter 4: Dependent And Independent Variables, Repeated Measures Design, Demand Characteristics

• School: University of Guelph
• Department: Psychology
• Course: PSYC 2740
• Professor: Andrew Robinson

Document Summary

Advantages: conclusions about cause and effect relationships. Independent variable: the variable that is manipulated within an experiment. Experimental condition: 1 of 2 or more levels of an independent variable that a participant receives in an experiment. Random assignment: a key part of those experiments that are designed to make inferences about cause and effect relations. Participants should be allocated randomly to one of the experimental conditions so that additional variables that might influence behaviour are spread but evenly across the groups. Between subjects variable: when one level of an independent variable is applied to some participants in an experiment but not others. Within-subject variable: a repeated measure in an experiment. Participant is exposed to two or more levels of the independent variable. The unique characteristics of the person are controlled because they are common to all levels of the independent variable.