According to Campbell, Why Is Regression to the Mean Such

question 56

Multiple Choice

According to Campbell, why is regression to the mean such a likely explanation when evaluating the effects of social programs (e.g., speeding crackdowns) ?

• A)programs to fix some problem are usually begun after an especially bad year
• B)program evaluation is always correlational rather than experimental
• C)it is usually easy to rule out all other confounds
• D)regression is the one confound that cannot be evaluated by comparison with a control group

---

Definitions:

Regressive Tax

A tax system where the tax rate decreases as the taxable amount increases, leading to a higher tax burden on lower-income earners.

Sales Tax

A tax imposed by governments on sales of goods and services, typically a percentage of the sale price paid by the consumer.

Income Rises

An increase in the amount of money received by an individual or household, which can affect purchasing power and economic status.

Proportional Tax

A taxation system where the tax rate remains constant regardless of the amount subject to tax, leading to a uniform tax rate for all taxpayers.