​In Randomized Controlled Trials, Researchers Assign Participants to Treatment or Control

question 109

Multiple Choice

​In randomized controlled trials, researchers assign participants to treatment or control groups randomly. What is the best definition of "random" as it applies to this?

• A) ​Group assignment is haphazard and not systematic.
• B) ​Participants are unaware of their group assignment.
• C) ​Researchers are unaware of the group assignments
• D) ​Everyone has an equal chance in group assignment.

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Definitions:

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EPS

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An investment portfolio that ideally includes all available assets in the market, weighted by their market capitalization, aiming to mimic the market's overall returns.