A careful plan for conducting experiments to investigate scientific questions is known as?

A careful plan for conducting experiments to investigate scientific questions is known as?

• A. Experimental design
• B. Vital signs
• C. Experiments
• D. Independent Variable

Answer: (A)

Experimental design is the plan you use to structure experiments so you can reliably test questions. It answers how you will change conditions, what you will measure, and how you will control other variables so observed effects can be attributed to the change you made. It guides choices about the independent variable (the factor you deliberately alter), the dependent variable (what you measure), and the controls and replication needed to reduce randomness. This planning is what makes results interpretable and credible. In contrast, vital signs are measurements of a person’s bodily state, experiments are the actual trial procedures, and the independent variable is the specific factor you manipulate, not the overall plan.

Experimental design is the plan you use to structure experiments so you can reliably test questions. It answers how you will change conditions, what you will measure, and how you will control other variables so observed effects can be attributed to the change you made. It guides choices about the independent variable (the factor you deliberately alter), the dependent variable (what you measure), and the controls and replication needed to reduce randomness. This planning is what makes results interpretable and credible. In contrast, vital signs are measurements of a person’s bodily state, experiments are the actual trial procedures, and the independent variable is the specific factor you manipulate, not the overall plan.