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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]
While every baby develops at their own pace, experts use certain milestones as a guide. Use this list of developmental milestones to learn what to expect during your baby's first year.
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.
Physical development. By this age, infants may have doubled their birth weights. They typically grow about 0.8 inches (2.0 cm) and gain about 1 to 1.5 pounds (450 to 680 g) during this month. [28] Fat rolls ("Baby Fat") begin to appear on thighs, upper arms and neck. Motor development. May be able to roll from front to back. [29]
Newmeyer suggests parents download the CDC's free milestone tracker app, which can help parents keep tabs on their child's development from ages 2 months through 5 years old.
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]
The inventory provides information in 11 criterion-referenced, skill-based developmental areas: [citation needed] Perambulatory Motor Skills and Behaviors; Gross-Motor Skills and Behaviors; Fine-Motor Skills and Behaviors; Self-help Skills; Speech and Language Skills; General Knowledge and Comprehension; Social-Emotional Development; Early ...
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. [80] A common concern in child development is delayed development of age-specific developmental milestones. Preventing, and intervening ...