Differential Attrition Decreases Internal Validity Because

question 45

Multiple Choice

Differential attrition decreases internal validity because

• A)the independent variable is not manipulated.
• B)demand characteristics are present.
• C)the experimental groups may differ in unknown ways.
• D)pretest sensitization is more likely.

Differentiate between political parties and interest groups.

Comprehend the contributions of political parties to democratic government.

Grasp the legal landscape of campaign finance in the United States, including key Supreme Court decisions.

Understand the role and regulation of Political Action Committees (PACs) and Super PACs in political campaigns.

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Definitions:

Error

The difference between the observed value and the true value of a quantity.

Dependent Variable

In an experimental setting, the variable being tested and measured, presumed to change in response to variations in the independent variable.

Sample Correlation Coefficient

A numerical value that determines both the magnitude and direction of a straight-line association between two variables measured quantitatively in a given sample.

Dependent Variable

The outcome factor whose variations are studied to determine the effect of one or more independent variables.