A.？ Decide the direction and goal of research and development.

B.？ Decide the content of the study

C.？ Specify the ways and means to be taken.

D.？ Provide scientific proof basis

Answer: d

Analysis: this question mainly examines the role of topic selection, and item D is the role of document retrieval, not the role of topic selection.

Research methods of educational science

It refers to the method used to study educational phenomena and their laws. Guided by Marxism, the research methods of educational science in China use various methods to explore the relationship between various elements in education and other things, as well as the changes and laws between quality and quantity of education.

The key to determine the research problem lies in the definition and use of key terms. Historical research is to find the facts of the past and describe, analyze and explain the past on the basis of this information. Therefore, the logical consistency of key terms is very important.

We must deal with two problems:

One is the fuzziness of key terms. The meaning of a term in any particular situation is concrete. If these terms cannot be clearly defined, it will lead to misreading and misunderstanding in the research process. For example, the word "education" has different meanings in different historical periods.

When studying the history of "education", it is necessary to make clear what is "education" in our field of vision and what is very different from today.

The second is the danger of "modernism" in the so-called historical research methods. This disease is quite common in theoretical circles. People always consciously or unconsciously give past nouns the meaning of today, or give them a meaning that has never been seen before in history. This is a misinterpretation or misunderstanding of history. Therefore, to determine the research problem, we must first define key terms.