By the Middle of the Twentieth Century,birth Rates in Developed

question 45

Multiple Choice

By the middle of the twentieth century,birth rates in developed countries declined due to__________.

• A)fewer families working in agriculture
• B)more families living in urban areas
• C)women delaying the age of marriage to pursue education
• D)all of the above
• E)none of the above

---

Definitions:

Dependent Variable

The variable that is measured in an experiment and expected to change as a result of changes in the independent variable.

Continuous Variables

Variables that can take an infinite number of values within a given range, allowing for very fine distinctions.

Factor Analysis

An analytical method in statistics that identifies the basic variables, or factors, explaining the correlation patterns seen within a group of observed variables.

Factors

In the context of statistics and experimental design, variables that are manipulated or measured to determine their effect on an outcome variable.