Question

in which of the following ways is the experimental treatment of an experiment different from the controlled treatment? a with respect to the data b with respect to the hypotheses c with respect to the observations d with respect to the variables

Explanation:

In an experiment, the experimental treatment (also called the experimental group) and the controlled treatment (control group) differ in terms of the independent variable. The experimental group receives the manipulation of the independent variable, while the control group does not (or receives a standard/placebo treatment). Data, hypotheses, and observations are not the primary distinction between the two groups—rather, it's the variables (specifically the independent variable) that are manipulated differently. So the experimental treatment differs from the controlled treatment with respect to the variables.

Answer:

D. with respect to the variables