Question

multiple-choice question

the variable that the scientist changes

dependent

independent

controlled

Explanation:

Identify the variable changed by the scientist

The question asks for the term used to describe the variable that a scientist deliberately changes or manipulates during an experiment.

Define the types of experimental variables

• Independent variable: The factor that is intentionally changed or manipulated by the experimenter to test its effects.
• Dependent variable: The factor that is measured or observed; it changes in response to the independent variable.
• Controlled variable: The factors that are kept constant throughout the experiment to ensure a fair test.

Select the correct option

Since the scientist is the one changing this variable, it is the independent variable.

Answer:

• dependent
• independent (Correct answer)
• controlled