[ANSWERED] A graduate student is planning to write a thesis on the affects of exercise in managing diabetes in.

A graduate student is planning to write a thesis on the affects
of exercise in managing diabetes in dogs. He is planning to do a trial with
dogs with diabetes, control matched with respect to age, breed, sex, and other
factors. One group will receive no extra exercise; another group will receive
30 minutes of exercise a day; and another group will receive two 30-minute
periods of exercise per day. He will measure blood sugar levels in all of these
dogs, as well as the quantities of drugs used to control diabetes. The graduate
student is also conducting a literature review on the subject as a background
to his research. In conducting this review, he searches various computer
databases, such as the Science Citation Index and MEDLINE, for the past fi ve
years. He gathers many abstracts and papers. For much of the research, he reads
only abstracts and not the full papers. Also, he does not include some of the
important work on diabetes in dogs that took place more than fi ve years ago.
• Should the graduate student read articles, not just
abstracts?
• If he cites an article in a publication or in his thesis,
should he read the full article?
• If he cites a book, should he read the full book or only
the part that he uses?
• Should the graduate student include articles published
more than fi ve years ago?