The Purchasing Power of the Average Person in the World

question 73

Multiple Choice

The purchasing power of the average person in the world today is:

• A) more than 30 times as high as it was 200 years ago.
• B) more than 20 times as high as it was 300 years ago.
• C) is about the same as it has been during the last two centuries.
• D) has increased steadily over the last two centuries.

Apply psychological theories to understand human behavior and motivation.

Understand the ethical considerations in psychological research.

Differentiate between major areas of contemporary psychology.

Understand the principles of experimental design and variable manipulation.