Examlex
The location of the heart is best described by which of the following?
Independent Variable
The variable in an experiment that is manipulated or changed by the researcher to observe its effect on the dependent variable.
Stimulus Variable
A Stimulus Variable is a factor in an experiment that can be changed or manipulated to observe its effects on the outcome.
Control Variable
A variable that is kept constant or unaltered in an experiment to ensure that the effects observed are due to the independent variable.
Questionnaire
A research instrument composed of a series of questions and other prompts for the purpose of gathering information from respondents.
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