Examlex
Researchers wanted to see if listening to calm music would reduce heart rates.Half of the research participants sat quietly and listened to calm music,and the other half sat quietly and listened to no music at all.The group that listened to the music is called the:
Treatment Groups
In experimental research, groups of participants receiving the intervention or treatment being tested, as opposed to control groups which receive no treatment or a placebo.
Experimental Research
A research method that investigates causal relationships by manipulating one variable to see its effect on another, under controlled conditions.
Independent Variable
The variable that is manipulated in an experiment to test its effects on the dependent variable.
Dependent Variable
A variable in an experiment that is expected to change in response to manipulations of the independent variable.
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