So, the theoretical level of research is characterized by the predominance of logical methods of cognition. At this level, the facts obtained are investigated, processed with the help of logical concepts, inferences, laws and other forms of thinking. Here, the objects under study are mentally analyzed, generalized, their essence, internal connections, laws of development are comprehended. At this level, sensory cognition (empiricism) may be present, but it is subordinate. The structural components of theoretical knowledge are the problem, hypothesis and theory. A problem is understood as a complex theoretical or practical task, the methods of solving which are unknown or not fully known.
A hypothesis is an assumption that requires verification and proof about the cause that causes a certain effect, about the structure of the objects under study and the nature of internal and external relations of structural elements. A hypothesis is scientific only if it is supported by the facts and it can exist only as long as it does not contradict the reliable facts of experience, otherwise it becomes just a fiction. The hypothesis is verified by the corresponding facts of experience, especially by experiment, obtaining the character of truth.
So the scientific hypothesis must meet the following requirements:
relevance, i.e. relevance to the facts on which it relies;
verifiability empirically (with the exception of unverifiable hypotheses);
compatibility with existing scientific knowledge;
possessing explanatory power, i.e. a certain number of facts, consequences, confirming it, should be derived from the hypothesis.
the hypothesis from which the largest number of facts is derived will have greater explanatory power;
simplicity, i.e. it should not contain any arbitrary assumptions, subjectivist accretions.
The facts of experience in some limited scientific field, together with realized, rigorously proven hypotheses, form a theory. Theory is an integral system of reliable knowledge. It is the highest form of generalization and systematization of knowledge.
Theory is a doctrine of generalized experience (practice), formulating scientific principles and methods that allow you to generalize and understand existing processes and phenomena, analyze the effect of various factors on them and offer recommendations for using them in peoples practical activities. The theory not only describes the totality of facts, but also explains them, i.e. reveals the origin and development of phenomena and processes, their internal and external connections, causal and other dependencies. All the provisions and conclusions contained in the theory are substantiated and proven.
The structure of the theory is formed by concepts, judgments, laws, scientific positions, teachings, ideas and other elements.
Concept is a thought that reflects the essential and necessary features of a certain set of objects or phenomena.
Category is a general, fundamental concept that reflects the most essential properties and relationships of objects and phenomena. Categories are philosophical, general scientific and related to a particular branch of science. Examples of categories in economic sciences: price, finance, credit.
A scientific term is a word or combination of words denoting a concept used in science. The set of concepts (terms) that are used in a particular science forms its conceptual apparatus.
A judgment is a thought that affirms or denies something.
A principle is a similar position of any branch of science. They are the initial form of systematization of knowledge (the axioms of Euclidean geometry, Bohrs postulate in quantum mechanics, etc.).
An axiom is a position that is initial, unprovable, and from which, according to established rules, other provisions are derived. Logical axioms are, for example, the law of identity, the law of contradiction, the law of exclusion of the third.
Law a provision expressing the general course of things in any area; a statement about how something is necessary or happens to be necessary. Laws are objective and express the most significant, stable, causal connections and relationships between phenomena and processes. Laws can be classified on various grounds. So, according to the main spheres of reality, one can single out the laws of nature, society, thinking and cognition; according to the scope of action universal, general and private.
A scientific law is knowledge formulated by people in concepts, which, however, has its basis in nature, the objective world.
A position is a scientific statement, a formulated thought.
Doctrine a set of theoretical provisions about any area of phenomena of reality. For example,
Idea is:
1) a new intuitive explanation of an event or phenomenon;
2) the defining pivotal position in the theory.
A concept is a system of theoretical views united by a scientific idea (scientific ideas); the basic idea.
The empirical level of research is characterized by the predominance of sensory cognition (the study of the external world through the senses). At this level, forms of theoretical knowledge are present, but have a subordinate significance.
The interaction of the empirical and theoretical levels of research is that:
1) the totality of facts constitutes the practical basis of the theory or hypothesis;
2) facts can confirm the theory or refute it;
3) a scientific fact is always permeated with theory, since it cannot be formulated without a system of concepts, interpreted without theoretical ideas;
4) empirical research in modern science is predetermined, guided by theory.
The formation of the theoretical level of science leads to a qualitative change in the empirical level. If before the theory was formed, the empirical material that served as its prerequisite was obtained on the basis of everyday experience and natural language, then when it reaches the theoretical level, it is «seen» through the prism of the meaning of theoretical concepts that begin to guide the setting up of experiments and observations the main methods of empirical research.
The structure of the empirical level of research is made up of facts, empirical generalizations and laws (dependencies).
The concept of «fact» is used in several meanings:
an objective event, a result related to objective reality (the fact of reality) or to the sphere of consciousness and cognition (the fact of consciousness);
knowledge about any event, phenomenon, the reliability of which is proven (truth);
a sentence that captures knowledge obtained in the course of observations and experiments.
An empirical generalization is a system of certain scientific facts, on the basis of which certain conclusions can be drawn or shortcomings and errors can be identified. Empirical laws reflect regularity in phenomena, stability in relationships between observed phenomena. These laws are not theoretical knowledge. Unlike theoretical laws, which reveal the essential connections of reality, empirical laws reflect a more superficial level of dependencies. For the success of scientific research, it must be properly organized, planned and carried out in a certain sequence (research procedure).
These plans and the sequence of actions depend on the type, object and goals of scientific research. So, if it is carried out on technical topics, then the main pre-planning document is first developed a feasibility study, and then theoretical and experimental studies are carried out, a scientific and technical report is drawn up and the results of the work are introduced into production.