As Disposable Income Decreases, Consumption

question 132

Multiple Choice

As disposable income decreases, consumption:

• A)increases.
• B)decreases.
• C)may either increase or decrease depending on the mpc.
• D)may either increase or decrease depending on the wealth effect.

Know the criteria and implications of different IQ score ranges.

Recognize the role of heredity and environment in determining IQ.

Identify the challenges and special considerations in measuring intelligence across different age groups.

Understand the significance and outcomes of longitudinal studies on intelligence.

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Definitions:

Internal Validity

The extent to which a study can prove that a cause-and-effect relationship exists between the tested variables, excluding the influence of external factors.

Nonmonotonic Relationship

A relationship between two variables where the direction of the effect changes over the range of the variable, meaning it can increase then decrease, or vice-versa.

Independent Variables

The factors that are manipulated or varied by researchers in an experiment to determine their effect on the dependent variable.

Dependent Variable

In experimental research, the variable that is being tested and measured, expected to change as a result of manipulations to the independent variable.