1. Music seems to be everywhere in society, and psychologists
have investigated its effects on a variety of performances. For
example, suppose an experimenter created three equivalent groups of
eight people each and asked each person to perform a proofreading
task on a short research paper. Subjects in group A1 performed the
task with no music playing in the background, subjects in group A2
performed the task with a selection of oldies playing in the
background, and subjects in groups...