Question

MATCH THE FOLLOWING TERMS Prognostic

factor                                              A. Study looking backward in time

Prospective                                                        B. Strongly associated with outcome      

Quasi-experimental                                        C. Subjects assigned to non-overlapping groups

Retrospective                                                    D. Study looking forward in time

Stratification                                                      E. No random assignment           

Question 2

An orthopedic surgeon observes that many of his patients coming in for total knee replacement surgery played organized sports before the age of 10. He plans to collect more extensive data on participation in organized sports from four patients undergoing knee replacement surgery and to report the findings. Identify the type of study proposed and indicate its specific strengths and weaknesses

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