Answer to Question 1
This term refers to the fact that the scientific approach is a continuous process that includes creative and rational thinking, empirical observations, verification and constant peer evaluation. A single research study is rarely considered sufficient to confirm a finding. A study must always be replicated by other scientists, perhaps using different methods. All conclusions are viewed as tentative and subject to correction if new evidence is presented.
Answer to Question 2
The principle of parsimony states that simple explanations of relationships among phenomena are preferred over more complex ones. Scientists aim to reduce complex realities to simple explanations. According to the principle of parsimony, if two competing theories explain and predict a phenomenon equally well, the more parsimonius theory is to be preferred.
Cultures Ideal Body Types
Hierarchy of scientific evidence
Child Development: A Topical Approach
Nursing: A Concept-Based Approach to Learning, Volume II, 3rd Edition
Examples of Scientific Theories
The TaqMan approach to quantitative real-time PCR (qPCR)