In Lesson one, we defined the term research as search for knowledge. We also said that we search for knowledge because in the society there are problems. A problem is a discrepancy between the ways things are and the way they ought to be. This gap is what is referred to as a research problem. We need to note that a research problem is not an issue that is causing pain. A problem is when a research asks the question WHY? This WHY calls for an investigation. Therefore, even when things are going on well, there is need to find out WHY. In this lesson, we shall discuss sources of this knowledge that we need to find solutions to research problems. There are three sources of knowledge: Experience, Reasoning and Scientific Inquiry. Welcome