I think that one of the things you learn in the history of medicine is that many people think that the way to study a problem is to define the problem and then study it. That turns out again and again to be wrong because you discover the only way to define the problem properly is to know the answer. The meaning of a concept in science is given after extensive investigation of the phenomena. One can see that psychological phenomena is harder to define than a physical phenomena. Induction and Deduction Induction occurs when from observations, a general rule is deduced.
Deduction begins with a statement and leads to logical consequences.
Problems Associated with Medical Testing 1. Long time period. Changes in the observed. During the experiment the subjects may grow older, wiser, become bored, and tired. Testing only one individual.