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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]
Developmental norms are sometimes called milestones – they define the recognized development pattern that children are expected to follow. Each child develops in a unique way; however, using norms helps in understanding these general patterns of development while recognizing the wide variation between individuals.
The CDC divides these milestones into several categories for each age, including social and emotional behaviors, language and communication skills, cognitive abilities and physical development and ...
The Maturational Theory of child development was introduced in 1925 [1] by Dr. Arnold Gesell, an American educator, pediatrician and clinical psychologist whose studies focused on "the course, the pattern and the rate of maturational growth in normal and exceptional children"(Gesell 1928). [2]
Some milestones are more variable than others; for example, receptive speech indicators do not show much variation among children with typical hearing, but expressive speech milestones can be quite variable. [81] A common concern in child development is delayed development of age-specific developmental milestones. Preventing, and intervening ...
The Bayley Scales of Infant and Toddler Development (version 4 was released September 2019) is a standard series of measurements originally developed by psychologist Nancy Bayley used primarily to assess the development of infants and toddlers, ages 1–42 months. [1]
A delayed milestone, which is also known as a developmental delay, refers to a situation where a child does not reach a particular developmental milestone at the expected age. Developmental milestones refer to a collection of indicators that a child is anticipated to reach as they grow older.
They created a three-stage model of development (e.g., basic, foundational, and societal). Bijou and Baer looked at these socially determined stages, as opposed to organizing behavior into change points or cusps (behavioral cusp). [4] In the behavioral model, development is considered a behavioral change.