Philosophers of science have contributed a great deal to the development of the scientific method. I drew heavily on their work in my research. However, their greatest contribution has been to the logical methods used in its ingredients. Since the scientific method must be viewed as just a guide as to how scientists and other researchers actually do the full range of their work, I did not find that philosophers were the ones with the formulas closest to actual practice.
In Insights and Illusions of Philosophy (1965), Jean Piaget says:
“From these premises Jaspers draws the following conclusions, which are precisely ours: ‘In philosophy there is no consensus of opinion, establishing a definitive knowledge. . . Contrary to science, philosophy under all its forms ought to dispense with a consensus of opinion, this ought to be implicit in its very nature.’”
It is not surprising then that Hodson writes in his essay “History, Philosophy and Science Teaching” (1991), discussing the movement to teach processes of science:
“Implicit in such a change is the assumption that a distinctive scientific methodology can be described. A consideration of the extensive literature in the philosophy of science (notably the work of Popper, Kuhn, Lakatos, Feyerabend, Laudan, and Putnam) reveals that such an assumption cannot be sustained. There is no general agreement on what constitutes scientific method.”
It is probably a safe conclusion that philosophers will never agree about the scientific method, for it is easily possible to claim, on philosophical grounds, that it does not exist, or it is this, that, or something else.
However, it does great harm when they express the opinion that the scientific method does not exist. This opinion is then reflected in grade schools, which interferes with teaching a practical description of the scientific method based on its being a flexible guide to the stages through which researchers normally go.
Hodson continues with:
“However, the realization that science has no one entirely rational method does not mean that we must assume it to be a mere jumble of irrational goings-on. Our inability to identify a single, simple method applicable in all situations does not mean that science has no methods, and we would do children a gross disservice if we implied that the world of the scientist is totally anarchic - a disservice just as great as the suggestion that science is propelled by a single all-powerful method.
My research has shown that, because of the claims of Conant, Popper, and others that the scientific method does not exist, the teaching of science in grade schools has been an anarchic situation, jumping from one reform program to another for lack of the base of the scientific method. Since children have been taught no method or guide in national reform programs, what else can they think that science is - other than a mere jumble of goings-on? The main reason we have not attained scientific literacy is that we are not adequately teaching the scientific method, also called the general pattern of the scientific method (of which SM-14 is an example).
Does responsibility for the study of the scientific method belong to psychologists? In Scientific Method (1968), Weatherall says:
“Science, in fact, is what scientists do. Study of scientific method is the study of how they do it, and is properly a branch of psychology, particularly important to all practising scientists and to anyone who is interested in scientists and science.”
In my research, I didn’t find psychologists to be the best source of formulas. However, one of the better books I found on the subject was by a psychologist, Carlo Lastrucci. His book, The Scientific Approach (1967), is still in print and is available at www.scientificmethod.com.