Sometimes in psychology experiments, groups of participants are required to take the same test more than once. In some cases,…
Psychology Research Methods
Random Assignment: Definition With Examples
Random assignment involves using procedures that rely on chance to assign participants to groups. Doing this means that every single…
What Is a Single-Blind Study?
In psychology, a single-blind study is a type of experiment or clinical trial in which the experimenters are aware of which…
What Is an Institutional Review Board?
In psychology research, an institutional review board (also known as an IRB) is a group of individuals designated to review…
What Is an Extraneous Variable?
An extraneous variable is anything in a psychology experiment other than the independent and dependent variables. The variables can present challenges…
