A key aspect of an experiment is the requirement that researchers
A) use correlational methods.
B) manipulate one variable to see its effect on another variable.
C) replicate their findings.
D) publish their results in a scientific journal.
E) provide some sort of placebo.

Question

Quizplus · Accepted Answer

Manipulating one variable and observing its effect on another variable is a key aspect of an experiment. This allows researchers to establish cause-and-effect relationships between variables, which is not possible with correlational methods. Replication is also important, but not necessarily a key aspect of an experiment. Placebos may be used in certain types of experiments, but are not a requirement for all experiments. Publishing results in a scientific journal is important for dissemination of findings, but is not a requirement for conducting an experiment.

A Key Aspect of an Experiment Is the Requirement That