Question

question 4 (4 points) (01.05 lc) which of the following describes the independent variable? a it is called the respondent variable. b it is plotted on the vertical axis when graphed. c it refers to a quantity changed by the experimenter. d it is something that remains controlled during trials.

Explanation:

The independent variable in an experiment is the variable that the experimenter manipulates or changes. It is not the respondent variable (which is the dependent variable), not plotted on the vertical axis (the dependent variable usually is), and not something controlled in the sense of being kept the same during trials (that's a controlled - variable).

Answer:

D. It is something that is changed by the experimenter.