Andy and Jeff Compare the Physical Development of Their Sons

question 239

Multiple Choice

Andy and Jeff compare the physical development of their sons. The baby boys are the same age. Andy brags that his infant son seems to be maturing at an advanced rate compared to what Jeff is observing in his son. Jeff worries that maybe there is something physically wrong with his son. Jeff consults a developmental book and finds that

• A)all children achieve the same physical skills, just at varying times
• B)the sequence of acquiring physical skills varies between cultures
• C)the sequence of acquiring physical skills varies between individuals
• D)not all children achieve the same physical skills in the same order

---

Definitions:

Upper-middle-income

A classification of socio-economic status used to describe individuals or families with income levels between the middle class and the affluent.

Industrially Advanced Countries

Nations with highly developed economies, significant industrial output, and advanced technological infrastructure.

Population Growth Rates

The rate at which the number of individuals in a population increases in a given time period as a result of birth rate, death rate, and net migration.

Industrialization

The process of transforming economies from primarily agricultural to one based on the manufacturing of goods, typically leading to economic growth and development.