Answer:
d. subjects
Explanation:
"Experimental research, often considered to be the “gold standard” in research designs, is one of the most rigorous of all research designs. In this design, one or more independent variables are manipulated by the researcher (as treatments), subjects are randomly assigned to different treatment levels (random assignment), and the results of the treatments on outcomes (dependent variables) are observed."
Reference: Pelz, Bill, and Herkimer County Community College. “Research Methods for the Social Sciences.” Lumen, 2019
Contact lists contain more information about a person than an address book.
~apex
<span>The natural rate of unemployment will drop in this instance. By increasing spending and/or decreasing taxes, aggregate demand is boosted, leading to more people being employed to meet the demand. This moves the natural rate of employment out to a greater level than previously experienced.</span>