5 Questions
Explain the purpose of an experiment in research methods.
The purpose of an experiment in research methods is to establish a cause and effect relationship, manipulate and control certain variables (independent variable), and measure the effect on another variable (dependent variable).
What are the IV and DV in an experiment?
IV (independent variable) has a causal effect on the DV (dependent variable). Researchers systematically use, manipulate, and control the IV, while the DV bears the effect and is measured by the experimenter.
What is a confounding variable in an experiment?
A confounding variable has an unintentional and undetermined effect on the DV, such as talent, interest, ability, or personality of the participant.
Define an extraneous variable and provide an example.
An extraneous variable could affect the DV but is a variable that can be controlled by the experimenter, such as diet or sleep routine.
What is the purpose of demand characteristics in an experiment?
Demand characteristics are cues or aspects of the experiment that lead participants to guess the experimenter's hypothesis, and thus influence their behavior.
Test your knowledge of research methods and experiments with this quiz. Explore the principles of objective, scientific procedures, hypothesis testing, and cause-and-effect relationships. This quiz covers key concepts and techniques used in conducting experiments to validate facts and discover primary relationships.
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