Psychology 2800E Study Guide - Final Guide: Experiment, Random Assignment, Complete Control

• School: Western University
• Department: Psychology
• Course: Psychology 2800E
• Professor: Doug Hazlewood

Document Summary

Control over what, when, where, and how. Between subjects experiment any tiger was either handled or not handled and therefore each tiger experienced only one treatment or condition. Also participants can experience every treatment = within-group design: treatment: another word for a condition of an experiment, treatment effect: it is a statistical text of the effect of various conditions of the experiment. *within subject design, each subject experience each condition so random allocation is not used. Within subject design: controlling for order and sequence effects. Within-subjects experiments, a subject experiences more than one experimental condition, therefore some variable may influence the data as a result of the repeated test. Experimenters avoid within-subjects designs if they believe that carryover effects will be substantial. If presenting each condition enough times to randomize the order is not possible, or if counterbalancing within subjects does not seem appropriate, you must leave order and sequence confounded with conditions within subjects.