Laboratory experiments, observational field studies, and model-building are all examples of different forms of scientific investigations. In what way do laboratory experiments primarily differ from other forms of scientific investigations?

Question

A.
Studies about how things behave in nature or studies involving very large objects are best answered through laboratory experiments.
B.
A laboratory experiment is the only accepted form of investigation within the scientific community.
C.
Laboratory experiments involve the identification and control of variables.
D.
Data can only be generated through laboratory experiments, not other forms of investigation.

Answer 1

The correct answer is:

C. Laboratory experiments involve the identification and control of variables.

Laboratory experiments are characterized by the ability to manipulate and control specific variables in a controlled setting, allowing for precise measurements and the establishment of cause-and-effect relationships. In contrast, observational field studies and model-building may not have the same level of control over variables and often rely on natural occurrences or simulations.