Attachment is an emotional bond that exists from one person to another. Attachment theory is a psychological, evolutionary and ethological theory that deals with relationships between human beings, in particular between mother and child. A young child must develop a relationship with at least one of his primary caregivers in order for him to develop socially and emotionally. Social competence is the condition of having the social, emotional and intellectual skills and behaviors that the child needs to succeed as a member of society. Many studies have focused on Western society, but there are many arguments as to whether or not this may be applicable to other cultures, such as poorer countries. John Bowlby was the first attachment theorist and describes attachment as an “enduring psychological connection.” among human beings” (Bowlby, 1969, p.194), believed that the early bonds formed between the child and his or her caregiver have an enormous impact that continues throughout the child's life. Attachment is said to help keep the baby close to the mother, thus improves the baby's chances of survival. Bowlby described that there are four stages in the development of attachment, this was extended by the addition of a fifth stage. Phase 1 is said to be where the child orients and signals without discriminating against people. Phase 2 is when the child orients and reports discrimination to at least one or more people. This therefore marks the first sign of attachment. The baby will be more likely to smile and interact more with the mother or another person who cares for him. This is normally shown between 5 and 7 months. In stage 3 the baby crawls towards the person or returns at different times for contact... in the center of the paper... will have prolonged physical contact and attachment, this is seen as a sign of closeness and dependence (Rothbaum et to 2000). Japanese children find separation from their caregiver stressful, but this may be due to shock rather than insecure attachment. The Japanese also consider avoidant behavior as rude in their culture, so this means that the strange situation classification will not be an adequate measure of attachment. This is compared to Germany where they believe that independence should be encouraged in early childhood (Grossman et al, 1985). Another criticism is that the strange classification of the situation was made in America, and was also tested on American children, this therefore means that it could be culturally biased or ethnocentric. This is because they will be the norms and values ​​of American culture, so it will not be the same for other cultures.