Sometimes in psychology experiments, groups of participants are required to take the same test more than once. In some cases, performance can change from the first instance of testing and the next simply due to […]
Random assignment involves using procedures that rely on chance to assign participants to groups. Doing this means that every single participant in a study has an equal opportunity to be assigned to any group. For […]
In psychology, a single-blind study is a type of experiment or clinical trial in which the experimenters are aware of which subjects are receiving the treatment or independent variable, but the participants of the study are […]
In psychology research, an institutional review board (also known as an IRB) is a group of individuals designated to review and monitor research that involves human subjects. IRB’s help ensure that the rights, welfare, and […]
Extraneous variables are anything in a psychology experiment other than the independent and dependent variables. The variables can present challenges and introduce errors, so it is important for experiments to control these extraneous factors. How […]
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