Dr Doodley thought that fast music enhanced peoples work per

Dr. Doodley thought that fast music enhanced people\'s work performance; she decided to run an experiment to test this idea. She chose two secretarial pools to study. One pool did legal typing, and the other did medical typing. (By the way, all of the secretaries in both offices happened to be women.) Dr. Doodley convinced the supervisor of each pool to let her play music in the office for a week. In one office, she played fast music every day. In the other office, she played slow music. (Unfortunately, the slow music was taped from an old record, so it did have a slight hiss. However, the fast music was fine.) At the end of the week, Dr. Doodley convinced both supervisors to let her do all of the performance evaluations. She found that the first pool had an average performance rating of 90 points (out of 100 possible), while the second group averaged only 60 points (out of 100). Dr. Doodley found that the difference in scores between the two groups was statistically significant, so she concluded that fast music enhances people\'s work performance.

Can you find anything wrong with Dr. Doodley\'s experiment or conclusion? List any problems you notice, and explain how they might have affected Dr. Doodley\'s results.

Solution

I think the slow music from the old record which had a slight hiss had made some wrong in the observations of the experiment as well as the conclusion. Due to the hiss sound the music could not be able to produce profound effect on the people\'s work performance. If the slow music would have been played better the observations and conclusion may have been likely to produce any significant change in the experiment or conclusion.