1. Can start to research the proper and reliable.
2. Can find the best tool used in the research. And can choose the tool to collect data correctly.
3. Make know how to choose subjects that should choose how much and should study the variable?
4. Make know statistical methods to analyze data. The hypothesis properly.
5. Make know how to perform any research at minimal investment, but in good condition.
6. Make read review critique realistic of others in the same field.
7. Make conceptual framework with clear up.
8. Help in planning work. The problems of and researcher. To the decision problems correctly and quickly.
9. Lets see the problem to research has clearly. And to know the facts about the research.
10. Help to know the past research related to the subject to research that there was a wide how little in any aspect. The results as well.
11. To guide the research process variable selection to study, design research, build tools, data analysis, interpretation Conclusion and writing research reports.
12. To guide the development of the quality of the subject to research. Because the documents related to the extensive research will help understand the serious proposition to study with prudent.
Read the analysis of rational criticism of others in the same disciplines.