Psychology and the character of science
What defines the very character of science is not the mechanical application of one or another method, but a much larger narrative in which methods are chosen because of their transparent relevance to a widely perceived problem. The methods adopted by Archimedes in ancient Greece, Newton in seventeenth-century England, Darwin in the middle of the nineteenth century, and Einstein early in the twentieth have very little in common at the descriptive level. In a word, there is no single scientific method at all. There is, however, a quite systematic relationship between the identification of a problem of scientific consequence and the subsequent choice from among available methods of observation and measurement. What establishes this relationship is a theory rich in ontological or in explicative possibilities. A theory rich in ontological possibilities is one which, when found to be valid, clarifies and may even reduce the domain of really existing entities. We no longer believe that heated objects rise because, as a result of heating, they take on a substance called »levity.« We no longer explain phenomena by referring to the properties of phlogiston.