A Study's Hypothesis That a New Surgical Approach Produces Safer

question 27

Multiple Choice

A study's hypothesis that a new surgical approach produces safer outcomes in immunosuppressed patients is tested in a 14-site research study across the United States. Subjects at all sites are randomly selected and randomly assigned to experimental versus control groups. What strategy is used in this research project?

• A)Quasi-experimental design
• B)Randomized-controlled trial
• C)Model testing design
• D)Counterbalancing

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Definitions:

Korsakoff's Syndrome

A chronic memory disorder caused by severe deficiency of thiamine (vitamin B1), often associated with alcoholism, characterized by short-term memory loss and confabulation.

Declarative Memory

A type of long-term memory that involves the ability to recall factual information, such as events, words, and concepts.

Short-Term Memory

The component of memory where small amounts of information can be stored for a short period of time, typically seconds to minutes.

Prefrontal Cortex

A region of the frontal lobe of the brain involved in decision making, planning, and personality expression.