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Adolescence is a time of rapid cognitive development. [ 60] Piaget describes adolescence as the stage of life in which the individual's thoughts start taking more of an abstract form and the egocentric thoughts decrease, allowing the individual to think and reason in a wider perspective. [ 61]
Defines physical measurements of development. The Tanner scale (also known as the Tanner stages or sexual maturity rating ( SMR )) is a scale of physical development as children transition into adolescence and then adulthood. The scale defines physical measurements of development based on external primary and secondary sex characteristics, such ...
e. Erikson's stages of psychosocial development, as articulated in the second half of the 20th century by Erik Erikson in collaboration with Joan Erikson, [ 1] is a comprehensive psychoanalytic theory that identifies a series of eight stages that a healthy developing individual should pass through from infancy to late adulthood .
Child development. Child development involves the biological, psychological and emotional changes that occur in human beings between birth and the conclusion of adolescence . Childhood is divided into three stages of life which include early childhood, middle childhood, and late childhood (preadolescence). [ 1]
Five Tanner stages of male genitalia; The Adolescent Period In males, testicular enlargement is the first physical manifestation of puberty (and is termed gonadarche ). [ 30 ] Testes in prepubertal males change little in size from about 1 year of age to the onset of puberty, averaging about 2–3 cm in length and about 1.5–2 cm in width.
Developmental psychology is the scientific study of how and why humans grow, change, and adapt across the course of their lives. Originally concerned with infants and children, the field has expanded to include adolescence, adult development, aging, and the entire lifespan. [ 1] Developmental psychologists aim to explain how thinking, feeling ...
The concrete operational stage is the third stage of Piaget's theory of cognitive development. This stage, which follows the preoperational stage, occurs between the ages of 7 and 11 (middle childhood and preadolescence) years, [49] and is characterized by the appropriate use of logic. During this stage, a child's thought processes become more ...
Preadolescence is a stage of human development following middle childhood and preceding adolescence. [ 1] It commonly ends with the beginning of puberty. [ 2] Preadolescence is commonly defined as ages 9–12 [ 3] ending with the major onset of puberty. It may also be defined as simply the 2-year period before the major onset of puberty. [ 4]