Many critics have written about Chopin's "Story of an Hour." A research paper that examines this critical heritage of the story might examine the way critics' responses have changed over the years, from Chopin's earliest reviews to the most recent interpretations. Or a research paper might be based on a reading of six or eight significant critical responses, categorizing previous critics' work into several camps, and showing how your own reading of the story is like and unlike what others have seen in the story.