What should the abstract of the paper include?

The abstract should have between 250 and 300 words. A good abstract should contain an introductory phrase or background of the work, the goal or purpose of the research, a description of the method used (e.g., description of the participants, instruments used and how the research was developed). Then the main results and a conclusion that allows establishing the relationship between the results and the initial goal must be included. We recommend taking a look at the summaries that are published in prestigious scientific journals to be used as an example.