The Scientific Hypothesis Today

Abstract Chapter 2 begins by reviewing the concept of the Scientific Method, as well as many outdated definitions of “hypothesis.” The discussion leads to the modern definition of the hypothesis as a conjectural explanation for a phenomenon; it is testable and falsifiable. The hypothesis serves as a blueprint and a summary of an investigation. Certain criticisms of the hypothesis and hypothesis-driven research are based on the older definitions of the term, and the book returns to them later. This chapter identifies and defines, with simple, nontechnical examples, concepts associated with the hypothesis, such as prediction and direct and indirect measurements. The philosophical programs of Karl Popper and John Platt, Critical Rationalism and Strong Inference, respectively, form a major focus of the chapter. The chapter explores the complexities of the concepts of falsification and corroboration and the importance of having multiple hypotheses. The chapter introduces the idea of the implicit hypothesis and ends with the presentation and discussion of key features of a good hypothesis.