Randomization Is Usually Preferred to Matching for Establishing Group Equivalence

question 2

Multiple Choice

Randomization is usually preferred to matching for establishing group equivalence because:

• A) we may not know all the relevant variables to match
• B) there is less confounding involved in randomization
• C) randomization guarantees group equivalence
• D) counterbalancing is not required with randomization

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Definitions:

Crude Oil Reserves

Quantities of crude oil that are identified and accessible for extraction with current technology.

Arctic National Wildlife Refuge

A protected area in Alaska, United States, known for its natural beauty, diverse wildlife, and ongoing debates over oil exploration.

Oil Sands

Deposits of bitumen or extremely heavy crude oil that can be mined and processed to extract the oil, primarily found in Alberta, Canada.

Crude Oil

A naturally occurring, unrefined petroleum product composed of hydrocarbon deposits and other organic materials.