Does this describe an observational study or an experiment? A medical researcher wants to determine how much trouble sleeping people have while recovering from a certain type of surgery. She contacts 200 men who had that type of surgery a year ago; asks them how many nights they had trouble sleeping during the six weeks they were recovering; and records their answers. Then she analyzes this data. O Observational Study Experiment Question 7 Extra Credit G 1pt 1 0 Details Extra credit List at least one concern with the previous researcher's methods