Little CorbinThere are some parents who say that children go through the terrible twos, Corbin, however, is going through the terrible threes. His behavior of biting and hitting his sister and father is unacceptable. If this continues without some sort of discipline, it will cause problems in Corbin's future. Robert, the father, is against spanking and his time-out method is not as effective. I am also against spanking and think there are other forms of discipline that are good for both the child and the parent. Two recommendations I would give Robert are to make sure he is giving Corbin the attention he needs and/or to take away Robert a privilege that Corbin usually gets on average. I will base the recommendations on John Bowlby's internal operating model theory. The first and most beneficial recommendation I would advise Robert to make is to make sure Corbin gets the attention he deserves. John Bowlby, the psychoanalyst, developed the theory of the internal working model. This model described in Lifespan Development: Infancy Through Adulthood, by Laurence Steinberg, Marc H. Bornstein, Deborah Lowe Vandell, and Karen S. Rook, states that it is a process in which individuals see themselves, the people around them, and the world in which they live. in (2011, p. 228). This theory revolves around the attachment of the child and the parent, in this case Corbin and Robert. It is important that Robert has a solid foundation with Corbin because Corbin's interactions with Robert will be based on the experiences and memories he has with Robert. Saul Mcleod, author of the article, Bowlby's Attachment Theory, states: "Around the age of three these appear to become part of a child's personality and therefore influence their understanding... half of paper... can make a difference: good or bad. The age of three can be challenging, but if Robert continues to show love and attention to Corbin in a positive way and follow with discipline, Corbin will get through this stage. Parenting requires a lot of patience, but usually when a child is fussy trying to communicate something to the parent. So it's important for Robert to stop and listen. References Harrington, DB (2004). .com/kids/discipline/time-out/when-time-outs-dont-work/Mcleod, S. (2007). Bowlby's Attachment Theory .simplypsychology.org/bowlby.htmlSteinberg, L., Bornstein MH, Vandell, DL, Rook, SR, (2011). Lifespan development: From childhood to adulthood. Belmont, CA: Wadsworth.