1. Scientific questions should be extracted on the basis of searching a certain number of facts and materials.

2. Seek theoretical support and form a preliminary hypothesis.

3. Use all kinds of relevant materials and methods to demonstrate the basic viewpoints of the hypothesis, and then form a rigorous and stable knowledge system.

Hypothesis is a "statement" in the form of expression, so it is unnecessary to use "questioning" expression for statistical test like asking questions. In a study, there are usually several hypotheses to be tested under the theoretical framework.

Usually, we often use models to describe various theoretical assumptions concisely, and outline the relationship between the elements of the research object in the theoretical framework and the structure, direction and intensity of this relationship.

Establishment of hypothesis

The establishment of hypothesis includes three stages: first, the stage of putting forward, which often adopts inductive reasoning and analogy reasoning; Second, in the deductive stage, logical reasoning is often used, that is, deductive reasoning; The third stage is verification, which requires repeated verification, but it is not absolutely negative.

The establishment of hypothesis should follow two rules: one is based on factual materials and scientific knowledge; Second, it is not contradictory to scientific principles and should not be contradictory logically.

The three principles of perjury, specious principle and simplicity principle are the criteria for evaluating scientific theories or hypotheses advocated by some scholars. Correct hypothesis is the soul of a paper. Those views that are meaningless or do not need to be verified, or generalized assumptions, are not scientific hypotheses.