The correct answer would be, critical or sensitive periods.
Mrs. Phelps has just read in a parenting magazine that if she does not begin reading to her daughter during her daughter's first year of life, Leanne will not learn to read well after beginning school. This parenting advice reflects the influence of critical or sensitive periods.
Explanation:
Sensitive and critical periods are the psychological developmental periods in the life of a child.
During the Sensitive period of child psychological development, the effects of experience on the brain are unusually strong. This is usually a limited time window in the development of a child's brain.
Whereas, critical period is a period in which environmental influences are very high on the development of the child.
So when Mrs, Phelps read that if her daughter will not begin to listen to reading from her, then she will have difficulty in reading school. It means, her daughter's this age is very sensitive and critical period in the brain development.
Learn more about critical and sensitive periods at:
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