During the childhood, the physical development is more rapid in infancy.
From birth to eight years old, it is a time of tremendous growth. Between birth and age three a child ordinarily doubles in height and quadruples in weight. Body proportions shift, in order for the infant whose head is almost one-fourth of its body weight altogether now is a toddler with a more balanced, adult-like appearance. Around this age a typical three year old will have mastered walking, sitting, scribbling, toilet-training, using a utensil, and sufficient eye-coordination despite rapid growth.
Between ages five and three children will have developed fine-motor skills.
Physical growth typically slows down between five and eight years old, whilst body proportions and motor skills are becoming more sufficient.
Children also develop a spoken vocabulary that ranges between 300 and 1,000 words within the first three years of life.
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Answer:
Random assignment.
Explanation:
Random assignment (also known as random allocation, or randomization), in psychology experiments, is randomly selecting participants or units by the use of chance procedures so that each participant or unit has the same chance (equal likelihood) of being assigned to any particular control or treatment group.
