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It has been defined as ages 10 to 24 years old by the World Happiness Report WHR. [1] In the course of development , the individual human progresses from dependency to increasing autonomy . It is a continuous process with a predictable sequence, yet has a unique course for every child.
The Gesell Developmental Schedules claimed that an appraisal of the developmental status of infants and young children could be made. The Gesell Developmental Schedule believes that human development unfolds in stages, or in sequences over a given time period. These stages were considered milestones, or the manifestations of mental development. [1]
At 10 months, this accuracy improves, [6] and infants are also more discerning in their response to joint attention. For example, at this age, a 10-month-old will not look in the same direction as an adult if that adult's eyes are closed, a mistake that younger children make. [13] Initiation of joint attention begins at approximately 1 year old ...
Resting heart rate is usually between 80 and 160 beats per minute, and it typically stays within that range until the infant is about one year old. [18] Motor development. Can hold up head and chest while in prone position. [24] Movements of arms and legs become smoother. [25] Can hold head steady while in sitting position. [24]
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.
[5] [3] [6] Sometimes the terms tweenie and tweenager are used to differentiate between older (10 to 15) and younger (7 to 11) age groups, respectively. [7] [8] While known as preadolescent in psychology, the terms preteen or tween are common in everyday use. A preteen or preteenager [1] is a person below 13 years of age. [9]
Early childhood development is the period of rapid physical, psychological and social growth and change that begins before birth and extends into early childhood. [1] While early childhood is not well defined, one source asserts that the early years begin in utero and last until 3 years of age. [1]
Jean Piaget's cognitive developmental theory describes four major stages from birth through puberty, the last of which starts at 12 years and has no terminating age: [11] Sensorimotor: (birth to 2 years), Preoperations: (2 to 7 years), Concrete operations: (7 to 11 years), and Formal Operations: (from 12 years). Each stage has at least two ...