Andrea is reading an introduction to a research report in psychology in which there is a general, comprehensive account of human aggression. Andrea is reading a (n) :

Andrea is reading a "theory".

Theory clarifies how some part of human conduct or execution is composed. It in this way empowers us to make expectations about that behavior. Theory gives ideas to name what we watch and to clarify connections between ideas. Theory enables us to clarify what we see and to make sense of how to achieve change. Hypothesis is a device that empowers us to recognize an issue and to design a methods for adjusting the circumstance. Theory is to legitimize repayment to get subsidizing and bolster - need to clarify what is being done and show that it works - Theory and research.