"Surgeons may operate better with music", SF Examiner, 21 Sept 94, p. A-7.

"Effects of music on cardiovascular reactivity among surgeons", K. Allen 
     and J. Blascovich, JAMA 21 Sept 94, v. 272, pp. 882-884.

1.  Was this an experiment, a survey, observational study, or an 
analytical study?

2.  Where did the subjects come from and how many were there?  List five 
characteristics common to all the subjects.

3.  How many treatments were applied?  List them.

4.  Describe how the dicided who got which treatment.

5.  How did the experimenters choose the musical conditions?

6.  Summarize Fig. 1 by stating, in your opinion, the four most important 
conclusions you can draw from the graph.

7.  List three difficulties of generalizing the results on this
article to performance of surgeons doing surgery in general.

8.  The study is not "blind" because the subjects know when they are 
receiving which treatment.  How might this affect the results in Fig. 
1?  Be specific.

9.  Which paragraphs in the article are derived from the study?  If
you could add one more paragraph to the article to help summarize the
study, what would you add?