PS295 Chapter Notes -Confounding, Blind Experiment, Random Assignment
Document Summary
Researchers manipulate iv to assess their effects on participants behaviour. Sometimes different levels of iv are referred to as experimental conditions. The caffeine and memory study: participants who receive non zero level of the iv compose the experimental groups and those who receive a zero level of the iv make up the control group. Some use a manipulation check which is a question that is designed to determine whether the. Subject variables reflect existing characteristics of the participants. Is the response being measured in the study. They typically involve either observations of actual behaviour, self-report measures or measures of physiological reactions. Involves placing participants in conditions in such a way that every participant has an equal probability of being placed in any experimental condition. For example -> if we have an experiment with only two conditions; you can flip a coin. It ensures participants in groups do not differ.
