1. Public administration consists of coordinating government efforts so people can work together to accomplish tasks and involves management applied to state affairs. 2. It is defined as a cooperative group effort within government covering the executive, legislative and judiciary branches and their interrelationships, and plays an important role in developing public policies. 3. Effective communication occurs when a message generates the desired effect and maintains the message's impact by being appropriately conveyed and interpreted, while barriers can distort or retard understanding and include filtering of information, personal emotions, ambiguity of words, and physiological factors.