Unlike some other scientific fields, we all have some naive understanding and conception about psychology, perhaps because we think we know ourselves quite well. For example, one without expertise in chemistry can only guess what happens if she mixes hydrogen peroxide with dishwashing detergent and yeast, but one without expertise in psychology may easily conclude that listening to music while studying boosts attention and therefore improves performance. However, much of what we believe to be true about ourselves and the human nature is very often false.