Asked by Sydney Nguyen on Jun 04, 2024
Verified
A school nurse is teaching a group of preadolescent girls about puberty. Which is the mean age of menarche for girls in the United States?
A) 
years
B) 
years
C) 
years
D) 14 years
Preadolescent Girls
Preadolescent girls are typically between the ages of 8-12, experiencing the phase just before entering puberty.
Mean Age
The average age of individuals in a particular group, calculated by summing their ages and dividing by the number of individuals.
- Understand the sequence and significance of maturational changes in adolescents.
Verified Answer
RK
Reuben KurianJun 08, 2024
Final Answer :
B
Explanation :
The average age of menarche is 12 years 9.5 months in North American girls, with a normal range of 
to 15 years. Ages 11½ ,13½ , and 14 are within the normal range for menarche, but these are not the average ages.
to 15 years. Ages 11½ ,13½ , and 14 are within the normal range for menarche, but these are not the average ages.
Learning Objectives
- Understand the sequence and significance of maturational changes in adolescents.
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