The document discusses a questionnaire aimed at teenagers aged 15-20 to gather their opinions on a rock band. The target age group was chosen because research found that many 15-20 year olds enjoy bands similar to the one being studied, such as Blink 182, You Me at Six, and All American Rejects. By focusing the questionnaire specifically on this age range that is most familiar with this music style, the researchers aimed to get more accurate feedback.