Final answer:
A controlled experiment is an example of experimental research where variables are manipulated to observe effects and establish cause-and-effect relationships.
Explanation:
A controlled experiment is an example of experimental research. In a controlled experiment, researchers manipulate variables to observe the effects and establish cause-and-effect relationships. An education professor conducting a study to understand if texting in class affects student learning by setting up two classes with different texting policies and comparing test scores is a prime example of experimental research.
Learn more about experimental research here:
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