An abstract is a brief, comprehensive summary of the contents of the article; it allows readers to survey the contents of an article quickly and, like a title, it enables persons interested in the document to retrieve it from abstracting and indexing databases (APA, p25).
An abstract must be: accurate, nonevaluative, coherent and readable, and concise. Your abstract should be between 150 to 250 words. Please, refer to APA 6th edition (pp.26-27) for the type of abstract that applies to your research
