Which of the following describes an experiment?
A)Create differences in the explanatory variable and then examine the results.
B)Observe differences in the explanatory variable and then notice whether these are related to differences in the response variable.
C)Both a and b are experiments.
D)Neither a nor b are experiments

Question

Quizplus · Accepted Answer

An experiment is a research design in which the researcher manipulates the explanatory variable and then measures the response variable. Choice A describes this process. Choice B describes an observational study, where the researcher simply observes differences in the explanatory variable and response variable without manipulating any variables.

Which of the Following Describes an Experiment