A nurse researcher assigns half a study sample to an experimental group and the other half to a control group. What does this action represent?
A) Instrumentation of the independent variable
B) Manipulation of the mediating variable
C) Elimination of the mediating variable
D) Manipulation of the independent variable

Question

Quizplus · Accepted Answer

This action represents the manipulation of the independent variable, as the researcher is actively changing who receives the experimental treatment and who does not, to observe the effects of this intervention on an outcome.

A Nurse Researcher Assigns Half a Study Sample to an Experimental