Question

the ____ is controlled by the experimenter, while the ____ represents the information collected and statistically analyzed by the experimenter.

○ experiment bias; placebo effect

○ dependent variable; independent variable

○ independent variable; dependent variable

○ placebo effect; experimenter bias

Explanation:

In experimental design, the independent variable is the factor that the experimenter intentionally manipulates or controls. The dependent variable is the outcome measure that is observed, collected, and analyzed to see the effect of the independent variable. The other options refer to biases or effects, not the controlled and measured variables described.

Answer:

O independent variable; dependent variable