While Piaget Proposed That Formal Operational Thought Is Not Fully

question 219

Multiple Choice

While Piaget proposed that formal operational thought is not fully settled in until around 15 years of age, evidence suggests that some people never fully employ formal operational thinking.Studies show that only _________ of postsecondary students and adults achieve formal operational thinking, and other estimates run as low as _________.

• A)40% to 60%; 25%
• B)30% to 50%; 25%
• C)25% to 50%; 10%
• D)50% to 75%; 40%

---

Definitions:

19th Century

The period from January 1, 1801, to December 31, 1900, characterized by significant industrial, cultural, and political changes globally.

Labor

The effort by humans to produce goods or services in the economy.

Transcontinental Railroads

Railroad lines that cross an entire continent, connecting different coasts or borders and significantly enhancing transportation and economic growth.

Federal Government Spending

The total amount of money the federal government expends on various services, programs, and debt interest.