The Abstract of an article is a short summary of the article's contents. Generally, it includes the focus, results, and conclusions of the study. Since the abstract does not contain all the information found in the article, it's best to view it as a tool for deciding if you should investigate the article further. Regardless of a subscription, an article's abstract will always be available to view.
Reading order: first.
Questions to ask while reading the abstract:
The Introduction of an article explains the idea being investigated, and gives background information if necessary. Generally, it will include a "literature review," which is a summary of research others have already performed on the topic. The introduction should also indicate why the study done in this particular article is unique, or how it adds to the overall discussion.
Reading order: second if the abstract is unclear; later if not.
Questions to ask while reading the introduction:
The Materials and Methods of an article tells you how the study was performed. Generally, it should include the specifics of the experiment, so as to be repeatable.
Reading order: later.
Questions to ask while reading:
The Results of an article should give an unbiased account of what the study's findings were, with data included.
Reading order: before reading the discussion if you wish to review the data without the opinions of the researchers; after reading the discussion if you are still figuring out whether the article interests you.
Questions to ask while reading:
The Discussion of an article tells you what the researchers felt was significant about the results. This section contains an analysis of the data, and may point to facts and figures.
The Conclusion of an article gives you the final thoughts of the researchers. It may reiterate what they noted in the discussion, or may be combined with the discussion. It may also give recommendations for further research.
Reading order: conclusion last; discussion before or after results.
Questions to ask while reading:
The References of an article lists the works used in the research and writing of the article. Any articles mentioned in the introduction should be present here, as should any studies that were modeled in the materials and methods.
Reading order: at any time.
Question to ask while reading:
Dean, R. (2013). How to read a paper and appraise the evidence. In Practice, 35(5), 282-285.
Durbin, C. G. J. (2009). How to read a scientific research paper. Respiratory Care, 54(10), 1366-1371.
Lang, T. A. (2011). The illusion of certainty and the certainty of illusion: a caution when reading scientific articles. The International Journal of Occupational and Environmental Medicine, 2(2), 118-123.
Science Buddies. (n.d.). How to Read a Scientific Paper. Science Buddies. http://www.sciencebuddies.org/science-fair-projects/top_science-fair_how_to_read_a_scientific_paper.shtml