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Psychology Research Methods

8 Classic Psychological Experiments

There are many famous (and sometimes infamous) psychological experiments that have helped shape our understanding of the human mind and …

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Categories History of Psychology, Psychology Research Methods

What Are Practice Effects?

Sometimes in psychology experiments, groups of participants are required to take the same test more than once. In some cases, …

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Categories Psychology Dictionary, Psychology Research Methods

Random Assignment: Definition With Examples

Random Assignment by rolling dice

Random assignment involves using procedures that rely on chance to assign participants to groups. Doing this means that every single …

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Categories Psychology Dictionary, Psychology Research Methods

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 …

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Categories Psychology Dictionary, Psychology Research Methods, Uncategorized

What Is an Institutional Review Board?

Institutional review board

In psychology research, an institutional review board (also known as an IRB) is a group of individuals designated to review …

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Categories Psychology Dictionary, Psychology Research Methods

What Is an Extraneous Variable?

Extraneous variable

An extraneous variable is anything in a psychology experiment other than the independent and dependent variables. The variables can present challenges …

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Categories Psychology Dictionary, Psychology Research Methods

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