Because the values, beliefs, education, customs and cultures of people vary so widely, along with the age and temperament of the child, methods of child discipline vary widely. Child discipline is a topic that draws from a wide range of interested fields, such as parenting, the professional practice of behavior analysis, developmental psychology, social work, and various religious perspectives. In recent years, advances in the understanding of attachment parenting have provided a new background of theoretical understanding and advanced clinical and practical understanding of the effectiveness and outcome of parenting methods.