Why Would a Nurse Researcher Want to Limit or Eliminate

question 13

Multiple Choice

Why would a nurse researcher want to limit or eliminate extraneous variables in a study?

• A) More research questions would be required to define the extraneous variable.
• B) Extraneous variables compete with the dependent variable as an explanation of the study's outcome.
• C) Extraneous variables compete with the independent variable as an explanation of the study's outcome.
• D) Manipulation of the extraneous variables increases the risk for researcher bias in the study's outcome.

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Definitions:

Complement

Set of proteins that circulate in inactive form in the blood; activated complement attracts phagocytes, coats antigenic particles, and punctures cells.

Immune Responses

The body's defensive mechanisms activated by the immune system to recognize and eliminate foreign substances or pathogens.

Memory Cells

A type of immune cell that retains a memory of past pathogens to enable a quicker response upon re-exposure.

Rapid Response

A swift reaction to an event or series of events that requires immediate attention and action, often used in emergency or critical situations.