Which of the Following Best Addresses the Nature of a Threat

question 41

Multiple Choice

Which of the following best addresses the nature of a threat to internal validity that is caused by history?

• A) changes in how a variable is measured during the course of the study
• B) the differential dropping out of the participants from a study
• C) an unexpected or unrelated event occurring during the study that could influence responses
• D) physiological changes occurring in participants during the course of the study

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Definitions:

Money Supply Growth Rate

The rate at which the total amount of money in circulation or in existence in a country grows.

Short-Run Phillips Curve

A graphical representation showing the inverse relationship between inflation and unemployment rates in the short term.

Shift Right

In economics, this refers to an increase in supply or demand in a market model, leading to a new equilibrium.

U.S. Net Exports

The difference between the value of goods and services the United States exports to other countries and the value of goods and services it imports from other countries.