When are laboratory experiments desirable?
A)when the sample should be representative of the population to which the results are generalized
B)when the experiment's context and conduct are natural so that the subjects behave realistically
C)when the intent of the experiment is to achieve high levels of external validity
D)when the intent of the experiment is to achieve high levels of internal validity
E)when the intent is to achieve high external validity and moderate internal validity

Question

Quizplus · Accepted Answer

Laboratory experiments are desirable when the intent of the experiment is to achieve high levels of internal validity. This is because in a laboratory setting, researchers have more control over the variables and can minimize extraneous factors that may affect the dependent variable. This increases the likelihood that any observed effects are actually caused by the independent variable being manipulated, thus increasing internal validity. However, laboratory experiments may not necessarily have high external validity, as the artificial environment in the lab may not be representative of the real-world context to which the results are generalized.

When Are Laboratory Experiments Desirable