If you would like to write a trustworthy essay or research paper, you have to use only credible and scholarly sources to persuade the audience to accept your point.
It means that you have to indicate such information as who wrote the idea your present, when it happened, and what method was used to collect the data.
It briefly describes the main aspects of your topic, your purpose, used research methods, obtained research results, so that readers can understand whether your paper can be helpful for them while conducting their own study. It depends on the demands imposed by your professor whether to write an abstract or not.
Thus, if you are unsure about it, ask your professor to clarify the issue.
There are a few important points relating to APA formatting which you should bear in mind when creating your papers: A page header/running head is one of the main peculiarities of the papers formatted in APA.
Page header is a shortened form of your paper title.
The abbreviation "APA" is deciphered as an "American Psychological Association," i.e.
an institution for the experts in psychology namely.
Still, the manual on the APA style issued by this organization can be used both by students and specialists in diverse subjects.
If you are required to write a paper in APA, you need to follow the instructions provided in the mentioned manual to make a correct format and structure.