What is a key feature of laboratory experiments?

The key feature of laboratory experiments is that researchers have complete control over variables. This level of control allows for precise manipulation of independent variables while maintaining consistent conditions for all participants. By creating a controlled environment, researchers can minimize the influence of extraneous variables, thereby enhancing the internal validity of the study. This allows for clearer conclusions about cause-and-effect relationships, as any observed changes in the dependent variable can be more confidently attributed to the manipulation of the independent variable.

Laboratory settings are specifically designed to reduce distractions and confounding factors, which is not the case in naturalistic studies where variables cannot be controlled to the same extent. This experiment design helps establish reliable and replicable results, which are critical for scientific rigor.