Question

______ depend on experimental conditions.
controlled variables
independent variables
observational variables
dependent variables

Explanation:

In experimental design, dependent variables are the ones that depend on the experimental conditions (specifically on the independent variables which are manipulated). Controlled variables are kept constant, independent variables are manipulated, and observational variables are just observed but not the ones that "depend" on conditions in the experimental context. So the correct option should be Dependent variables.

Answer:

Dependent variables