Which Experimental Design Means That Two Groups of Test Units

question 21

Multiple Choice

Which experimental design means that two groups of test units were randomly assigned to two different treatment groups at the same time, and the dependent variable was measured in the two groups simultaneously?

• A)R X₁ O₁
• R X₂ O₂
• B)R X₁ O₁
• O₂ X₂ O₃
• C)X O₁ O₂
• X O₁ O₂
• D)R X₁ O₁
• R X₁ O₁

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Definitions:

Intangible Activity

Economic or business activity that is not physical in nature, often related to services, knowledge, or intellectual property.

Tangible

Physical objects or assets that can be seen, touched, and measured.

Physical

is related to material things or bodies rather than the mind or spirit, often used in terms of physical properties or possessions.

Circular-flow Model

An economic model illustrating the movement of resources and money between producers and consumers within an economy, showcasing the interconnectedness of businesses, households, and the government.