Research Methods and Experiments Quiz

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).

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.

A confounding variable has an unintentional and undetermined effect on the DV, such as talent, interest, ability, or personality of the participant.

<p>An extraneous variable could affect the DV but is a variable that can be controlled by the experimenter, such as diet or sleep routine.</p> Signup and view all the answers

<p>Demand characteristics are cues or aspects of the experiment that lead participants to guess the experimenter's hypothesis, and thus influence their behavior.</p> Signup and view all the answers