Puberty began for Molly when she was 9 years old.Her mother began puberty at 11,and her grandmother at 13.This is an example of a _____ trend.

Question

Quizplus · Accepted Answer

This is an example of a secular trend, which refers to the gradual changes in physical development that occur over generations. The decreasing age of onset of puberty in successive generations is a well-documented secular trend.

Puberty Began for Molly When She Was 9 Years Old