An Infectious Illness That Results in the Accumulation of Fluid

question 68

Multiple Choice

An infectious illness that results in the accumulation of fluid in the alveoli is

• A) tuberculosis.
• B) pneumonia.
• C) bronchitis.
• D) emphysema.

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Definitions:

Confounding Variable

A variable that influences both the dependent and independent variables in a study, potentially misleading the results if not controlled.

Independent Variable

The variable in an experiment that is manipulated to observe its effect on a dependent variable.

Internal Validity

The extent to which a study can demonstrate a cause-and-effect relationship between variables, free from external influence.

Random Assignment

A process used in experimental designs to assign subjects randomly to either the treatment group or the control group, ensuring that each participant has an equal chance of being placed in any group.