How Do Sample Sizes in Randomized Controlled Trials Typically Compare

question 5

Multiple Choice

How do sample sizes in randomized controlled trials typically compare with other types of studies?

• A) Sample sizes are larger and participants are recruited at multiple sites.
• B) Sample sizes are varied in scope with participants from multiple sites.
• C) Sample sizes are smaller and participants are recruited at multiple sites.
• D) Sample sizes are limited in scope with participants from a single site.

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Definitions:

Neutral Stimulus

A neutral stimulus is something in the environment that initially does not elicit any intrinsic response until it is paired with an unconditioned stimulus.

Conditioned Stimulus

An initially neutral signal that, once it is linked with a natural stimulus, eventually elicits a learned response.

Pavlov

Ivan Pavlov, a Russian physiologist known primarily for his work in classical conditioning, particularly experiments with dogs leading to the concept of the conditioned reflex.

Neutral Stimulus (NS)

In classical conditioning, a stimulus that elicits no response before conditioning.