Once a research study has started, the participants are required to finish

In most differential research, it is difficult to draw solid conclusions on the basis of a single research study because of

A) The possible confounding variables. B) The difficulty in drawing the proper conclusion from the null hypothesis. C) The difficulty in choosing the appropriate statistical test. D) Inadequate sampling strategies.

____________________ is the theory of politics that views society as being divided up into groups with competing demands

Fill in the blank(s) with correct word