1. Oldest child: as a child, this individual suddenly has to share his/or her parents' attention when the second sibling arrives. If proper transition does not occur, the firstborn may become insecure and dislike people. However, if proper transition occurs, he/or she will be responsible, dependable, hard working, and achievement-oriented. Generally, the firstborn child has more rapid language acquisition, achieves better grades in school and higher scores on IQ tests, and is more achievement-oriented and socially responsible than later born children. The later are usually less cautious, have better peer relationships, and are more confident in social situations.

2. Second child: from the beginning of his/or her life, this individual shares attention and competes with the older sibling. These individuals are often ambitious.

3. Middle child: middle children often feel left out and develop "poor me" attitudes.

4. Youngest: the baby can be spoiled, easily influenced by others, and often develops in directions not thought of by others. These individuals are often the most liked.

5. Only child: being accustomed to center stage, these individuals may not learn to share and cooperate. They relate and deal well with adults.