ASEP Successful Coaching Practice Test 2026 - Free Coaching Practice Questions and Study Guide

The statement that most growth occurs between ages 17 and 20 is supported by research indicating that significant physical changes typically happen during late adolescence. During this period, especially for males, there can still be a notable increase in height and muscle mass as they approach adulthood.

While growth patterns can vary based on genetic and environmental factors, it is generally recognized that the years leading up to and including the late teens are critical for physical development. The peak growth spurts often occur earlier in adolescence, but growth in strength, coordination, and certain physical attributes can continue during this later stage.

In contrast, other statements suggest either an early cessation of growth or imply that all individuals complete their physical development too early, which does not align with current understanding of developmental biology. For instance, physical growth does not stop strictly at age 18, nor does it generally continue until 25 for everyone, as it varies widely among individuals.