john nathan, who grew up in a relatively affluent family and attended private schools, has just accepted a job in a public middle school in a low-income school district. realizing that his own experiences may not have prepared him to be successful in this setting, john decides to spend time in the neighborhood observing young adolescents as they go about their lives: playing sports, running errands, and just hanging out. he discovers that these youngsters are in some ways very different from, and yet in other ways very similar to, the kids with whom he grew up. john’s inquiry most closely resembles which one of the following?