Which Chambers Contract Simultaneously

question 30

Multiple Choice

Which chambers contract simultaneously?

• A)Two atria
• B)Right atrium and right ventricle
• C)All chambers contract simultaneously.
• D)All chambers contract individually.

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Definitions:

Confederates

In experimental psychology, individuals who seem to be participants but are actually part of the research team, used to manipulate social interactions as part of the experiment.

Experimental Group

In an experiment, this group is exposed to the variable being tested, contrasting with the control group, which is not exposed to the variable.

Independent Variable

In experimental and research settings, the variable that is manipulated to observe its effects on a dependent variable.

Internal Validity

The degree to which a study establishes a trustworthy cause-and-effect relationship between a treatment and an outcome.