... is characterised by three ideas and concentrates on the psych-sexual development, which starts with the upsurge of instincts, which occur as a result of puberty. Freud (1937) states, " this upsets the psychic balance that was achieved at the end of childhood, causing internal emotional upheaval, leading to a greatly increased vulnerability of personality." Secondly maladaptive behaviour can result from the inability of the psychological defences to cope with inner conflicts and tensions leading to behaviours such as extreem mood changes and low self-esteem. Thirdly the adolescent must go through a process of disengagement, which is necessary if mature. Emotional and sexual relationships are to established outside the home. The onset of adolescences is a period characterised by rapid and uneven growth and research into deviant behaviour as a result of puberty has concentrated on the early or late onset of puberty. There are two principle theories that are associated ...

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