Project Summary: For essay star Assignment 1(2 pages): Identify and describe the primary dimensions of credibility. Identify and discuss the forms of credibility as support for arguments. Identify and briefly explain at least three of the general principles for the use of credibility. Explain how credibility is a dynamic process. Discuss how credibility changes with spheres. Assignment 2 (2pages): What are the points that can be used to argue that refutation is a constructive, not a destructive, process? What are the questions you should take into consideration in assessing an argumentative situation? Discuss the role of decision makers' presumptions in planning refutation. Identify and discuss the general theory of refutation. Discuss and illustrate the principles in effective communication of refutation.