Question

1. the variable that is observed and changes in response to the manipulated variable (independent) is called the

hypothetical variable
observed variable
responding (dependent) variable
control variable

Explanation:

To solve this, we analyze each option:

• Hypothetical variable: Not a standard term for this context.
• Observed variable: Too vague; the key is the response to the independent variable.
• Responding (dependent) variable: By definition, this variable changes in response to the independent (manipulated) variable.
• Control variable: Variables kept constant, not the one responding.

Answer:

C. responding (dependent) variable