An Example of a Randomized Controlled Experiment Is When

question 1

Multiple Choice

An example of a randomized controlled experiment is when

• A)households receive a tax rebate in one year but not the other.
• B)one U.S.state increases minimum wages and an adjacent state does not, and employment differences are observed.
• C)random variables are controlled for by holding constant other factors.
• D)some 5th graders in a specific elementary school are allowed to use computers at school while others are not, and their end-of-year performance is compared
• Holding constant other factors.